Adaptive Practice
Electricity
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Easy
What is the SI unit of electric current?
Easy
Which material is commonly used as the filament in an electric bulb?
Easy
Ohm's law states that the current through a conductor is directly proportional to the:
Medium
If the resistance in a circuit is doubled and the voltage remains the same, the current will:
Easy
Which of the following is a good conductor of electricity?
Medium
In a series circuit with three resistors of 2Ω, 3Ω, and 5Ω, what is the total resistance?
Hard
A 100 W bulb and a 60 W bulb are connected in series to a 220 V supply. Which bulb will glow brighter?
Medium
What happens to the resistance of a metallic conductor when its temperature increases?
Easy
Which device is used to measure electric current?
Hard
If two resistors, 4Ω and 6Ω, are connected in parallel, what is their equivalent resistance?