Q1. If a 5Ω resistor is connected to a 15V battery, what is the power dissipated by the resistor? (2023)
Solution:
Power (P) can be calculated using P = V^2 / R. Here, P = 15V^2 / 5Ω = 45W.
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Q2. If a 10Ω resistor is connected to a 20V battery, what is the power consumed by the resistor? (2023)
Solution:
Power (P) can be calculated using the formula P = V^2 / R. Here, P = 20V^2 / 10Ω = 40W.
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Q3. A circuit has a current of 5A and a resistance of 10Ω. What is the power consumed in the circuit? (2020)
Solution:
Power (P) can be calculated using P = I^2 * R = (5A)^2 * 10Ω = 25 * 10 = 250W.
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Q4. A circuit has a current of 2A and a resistance of 6Ω. What is the voltage across the circuit? (2020)
Solution:
Using Ohm's Law, V = I * R = 2A * 6Ω = 12V.
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Q5. A 10-ohm resistor is connected to a 20-volt battery. What is the power consumed by the resistor? (2021)
Solution:
Power (P) can be calculated using the formula P = V^2 / R. Here, P = 20^2 / 10 = 400 / 10 = 40 W.
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Q6. A circuit has a current of 5A and a resistance of 2Ω. What is the power consumed in the circuit? (2020)
Solution:
Power (P) can be calculated using the formula P = I^2 * R = (5A)^2 * 2Ω = 25W.
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Q7. If a 10Ω resistor carries a current of 2A, what is the voltage across the resistor? (2023)
Solution:
Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.
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Q8. What is the relationship between voltage, current, and resistance as stated by Ohm's Law? (2021)
Solution:
Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with the resistance (R) being the constant of proportionality. Therefore, V = I * R.
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Q9. If a resistor has a resistance of 8Ω and the current flowing through it is 4A, what is the power dissipated by the resistor? (2022)
Solution:
Power (P) can be calculated using P = I^2 * R = (4A)^2 * 8Ω = 16 * 8 = 128W.
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Q10. If a resistor has a resistance of 10Ω and a current of 2A flows through it, what is the voltage across the resistor? (2023)
