Physics Syllabus (JEE Main)

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Q. If a circuit has a 15V battery and two resistors (5Ω and 10Ω) in series, what is the voltage across the 10Ω resistor?

A. 5V
B. 10V
C. 15V
D. 0V

Solution

Using the voltage divider rule, V2 = (R2 / (R1 + R2)) * Vtotal = (10 / (5 + 10)) * 15 = 10V.

Correct Answer: B — 10V

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Q. If a circuit has a 15V battery and two resistors (R1 = 5Ω, R2 = 10Ω) in series, what is the voltage across R2?

A. 10V
B. 5V
C. 15V
D. 0V

Solution

Voltage across R2 = (R2 / (R1 + R2)) * V = (10Ω / (5Ω + 10Ω)) * 15V = 10V.

Correct Answer: A — 10V

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Q. If a circuit has a 15V battery and two resistors of 5Ω and 10Ω in series, what is the power dissipated by the 10Ω resistor?

A. 1.5W
B. 2.5W
C. 3.75W
D. 5W

Solution

Total resistance R = 5Ω + 10Ω = 15Ω. Current I = V/R = 15V/15Ω = 1A. Power P = I^2 * R = 1^2 * 10 = 10W.

Correct Answer: C — 3.75W

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Q. If a circuit has a 24V battery and two resistors of 6Ω and 12Ω in series, what is the voltage across the 12Ω resistor?

A. 8V
B. 12V
C. 16V
D. 18V

Solution

Using the voltage divider rule, V2 = (R2 / (R1 + R2)) * Vtotal = (12 / (6 + 12)) * 24 = 16V.

Correct Answer: B — 12V

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Q. If a circuit has a 9V battery and two resistors of 3Ω and 6Ω in series, what is the voltage across the 6Ω resistor?

A. 3V
B. 6V
C. 9V
D. 4.5V

Solution

Using the voltage divider rule, V6Ω = (R6Ω / (R3Ω + R6Ω)) * Vtotal = (6 / (3 + 6)) * 9 = 6V.

Correct Answer: B — 6V

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Q. If a circuit has a current of 0.5 A and a resistance of 20 ohms, what is the voltage?

A. 10 V
B. 5 V
C. 15 V
D. 20 V

Solution

Using Ohm's Law, V = I * R = 0.5 A * 20 Ω = 10 V.

Correct Answer: A — 10 V

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Q. If a circuit has a current of 2 A flowing through a resistor of 5 ohms, what is the voltage across the resistor?

A. 5 V
B. 10 V
C. 2 V
D. 1 V

Solution

Using Ohm's Law, V = I * R. Here, V = 2 A * 5 ohms = 10 V.

Correct Answer: B — 10 V

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Q. If a circuit has a current of 2A flowing through a 5Ω resistor, what is the power dissipated by the resistor?

A. 5W
B. 10W
C. 15W
D. 20W

Solution

Power (P) = I^2 * R = (2^2) * 5 = 4 * 5 = 20W.

Correct Answer: B — 10W

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Q. If a circuit has a current of 2A flowing through a 5Ω resistor, what is the voltage across the resistor?

A. 10V
B. 5V
C. 2.5V
D. 1V

Solution

Using Ohm's Law, V = I * R = 2A * 5Ω = 10V.

Correct Answer: A — 10V

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Q. If a circuit has a current of 3 A and a resistance of 4 ohms, what is the voltage across the circuit?

A. 7 V
B. 12 V
C. 15 V
D. 20 V

Solution

Using Ohm's Law, V = IR = 3 A * 4 Ω = 12 V.

Correct Answer: B — 12 V

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Q. If a circuit has a current of 3A flowing through a 10Ω resistor, what is the power dissipated by the resistor?

A. 30W
B. 10W
C. 90W
D. 15W

Solution

Power (P) = I^2 * R = 3^2 * 10 = 9 * 10 = 90W.

Correct Answer: A — 30W

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Q. If a circuit has a current of 3A flowing through a 5Ω resistor, what is the power dissipated by the resistor?

A. 5W
B. 10W
C. 15W
D. 20W

Solution

Power (P) = I^2 * R = (3A)^2 * 5Ω = 9 * 5 = 45W.

Correct Answer: C — 15W

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Q. If a circuit has a current of 3A flowing through a 5Ω resistor, what is the power dissipated in the resistor?

A. 15W
B. 9W
C. 5W
D. 3W

Solution

Power (P) = I^2 * R = (3A)^2 * 5Ω = 9A^2 * 5Ω = 45W.

Correct Answer: A — 15W

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Q. If a circuit has a current of 5 A and a resistance of 10 Ω, what is the power consumed in the circuit?

A. 50 W
B. 25 W
C. 10 W
D. 5 W

Solution

Power (P) can be calculated using P = I^2 * R = (5 A)^2 * 10 Ω = 25 A^2 * 10 Ω = 250 W.

Correct Answer: A — 50 W

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Q. If a circuit has a current of 5 A and a resistance of 10 Ω, what is the voltage?

A. 50 V
B. 5 V
C. 10 V
D. 15 V

Solution

Using Ohm's Law, V = I * R = 5 A * 10 Ω = 50 V.

Correct Answer: A — 50 V

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Q. If a circuit has a current of 5 amperes and a resistance of 10 ohms, what is the voltage?

A. 50 volts
B. 5 volts
C. 10 volts
D. 15 volts

Solution

Using Ohm's Law, V = I * R = 5 A * 10 Ω = 50 V.

Correct Answer: A — 50 volts

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Q. If a circuit has a current of 5A flowing through a 10Ω resistor, what is the power dissipated by the resistor?

A. 25W
B. 50W
C. 75W
D. 100W

Solution

Power (P) = I^2 * R = 5^2 * 10 = 25 * 10 = 250W.

Correct Answer: B — 50W

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Q. If a circuit has a current of 5A flowing through a resistor of 10Ω, what is the voltage across the resistor?

A. 5V
B. 10V
C. 15V
D. 50V

Solution

Using Ohm's Law (V = IR), the voltage is V = 5A * 10Ω = 50V.

Correct Answer: B — 10V

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Q. If a circuit has a total current of 3 A and a total resistance of 6 ohms, what is the voltage supplied by the battery?

A. 9 V
B. 6 V
C. 3 V
D. 12 V

Solution

Using Ohm's law, V = I * R, we have V = 3 A * 6 ohms = 18 V.

Correct Answer: A — 9 V

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Q. If a circuit has a total current of 5 A and a total resistance of 10 ohms, what is the voltage across the circuit?

A. 50 V
B. 5 V
C. 10 V
D. 2 V

Solution

Using Ohm's law, V = I * R, we have V = 5 A * 10 ohms = 50 V.

Correct Answer: A — 50 V

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Q. If a circuit has a total current of 5A and a total resistance of 10Ω, what is the total voltage supplied by the battery?

A. 25V
B. 50V
C. 75V
D. 100V

Solution

Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.

Correct Answer: B — 50V

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Q. If a circuit has a total resistance of 10 ohms and a total voltage of 50V, what is the total current?

A. 5 A
B. 10 A
C. 2 A
D. 0.5 A

Solution

Using Ohm's law, I = V/R = 50V / 10 ohms = 5 A.

Correct Answer: A — 5 A

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Q. If a circuit has a total resistance of 10Ω and a current of 1.5A, what is the voltage supplied by the battery?

A. 15V
B. 10V
C. 5V
D. 20V

Solution

Using Ohm's Law, V = I * R = 1.5A * 10Ω = 15V.

Correct Answer: A — 15V

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Q. If a circuit has a total resistance of 10Ω and a current of 2A flowing through it, what is the total voltage supplied by the battery?

A. 5V
B. 10V
C. 15V
D. 20V

Solution

Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.

Correct Answer: B — 10V

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Q. If a circuit has a total resistance of 10Ω and a current of 2A flowing through it, what is the voltage across the circuit?

A. 5V
B. 10V
C. 20V
D. 15V

Solution

Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.

Correct Answer: C — 20V

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Q. If a circuit has a total resistance of 10Ω and a current of 2A, what is the total voltage supplied by the battery?

A. 10V
B. 20V
C. 30V
D. 40V

Solution

Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.

Correct Answer: B — 20V

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Q. If a circuit has a total resistance of 10Ω and a current of 3A, what is the total voltage supplied by the battery?

A. 10V
B. 20V
C. 30V
D. 40V

Solution

Using Ohm's Law, V = I * R = 3A * 10Ω = 30V.

Correct Answer: C — 30V

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Q. If a circuit has a total resistance of 10Ω and a current of 5A, what is the total voltage supplied by the battery?

A. 10V
B. 20V
C. 30V
D. 50V

Solution

Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.

Correct Answer: B — 20V

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Q. If a circuit has a total resistance of 12 ohms and a current of 3A flows through it, what is the voltage across the circuit?

A. 24V
B. 36V
C. 12V
D. 18V

Solution

Using Ohm's law, V = I * R = 3A * 12 ohms = 36V.

Correct Answer: B — 36V

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Q. If a circuit has a total resistance of 12Ω and a current of 1.5A flowing through it, what is the total voltage supplied by the battery?

A. 18V
B. 12V
C. 6V
D. 9V

Solution

Using Ohm's Law, V = I * R = 1.5A * 12Ω = 18V.

Correct Answer: A — 18V

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Physics Syllabus (JEE Main)

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