Q1. If the current flowing through a conductor is 3A and the resistance is 6Ω, what is the voltage across the conductor? (2023)
Solution:
Using Ohm's Law, V = I * R = 3A * 6Ω = 18V.
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Q2. What happens to the current in a circuit if the voltage is increased while the resistance remains constant? (2021)
Solution:
According to Ohm's Law, if the voltage (V) increases while resistance (R) remains constant, the current (I) will increase.
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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. What happens to the current in a circuit if the voltage is tripled while the resistance remains constant? (2023)
Solution:
According to Ohm's Law, if the voltage (V) is tripled and resistance (R) remains constant, the current (I) will also triple (I = V/R).
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Q5. What is the relationship between voltage, current, and resistance as described 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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Q6. If a circuit has a current of 5 A and a resistance of 10 ohms, what is the voltage across the circuit? (2019)
Solution:
Using Ohm's Law, V = I * R = 5 A * 10 Ω = 50 V.
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Q7. If the current through a resistor is 2A and the resistance is 5Ω, what is the voltage across the resistor? (2022)
Solution:
Using Ohm's Law, V = I * R = 2A * 5Ω = 10V.
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Q8. If a 10Ω resistor is connected across a 20V battery, what is the power dissipated in the resistor? (2023)
Solution:
Power (P) can be calculated using the formula P = V^2 / R. Here, P = 20^2 / 10 = 400 / 10 = 40W.
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Q9. If a 10Ω resistor carries a current of 5A, what is the voltage across the resistor? (2023)
Solution:
Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.
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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)
