Practice Ohm’s Law (2.3) - Current Electricity

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6 sample questions

Question 1.
What is the relationship described by Ohm's Law?
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Remember the formula V = I * R.
Question 2.
If a 10V battery is connected to a circuit with a 5Ω resistor, what is the current?
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Use I = V / R.
3Question 3.
What does Ohm's Law relate?
- Voltage to resistance
- Voltage to current
- Current to resistance
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Think about the relationship defined by the equation.
4Question 4.
True or False: Current increases when resistance decreases, at a constant voltage.
- True
- False
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Consider the formula I = V / R.
Question 5.
A heater operates at 240V and draws a current of 10A. Calculate the resistance of the heater.
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Remember to rearrange Ohm’s Law for resistance.
Question 6.
In a circuit, the voltage is increased from 5V to 10V, and the current increases from 1A to 2A. Is the resistance constant? Explain your reasoning.
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Calculate resistance before and after to confirm.

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