Adaptive Practice
Electricity
10 questions • Earn up to 95 XP • First attempt — go for 100%!
0
XP
0
Correct
x1
Combo
Question 1 of 10
⏱ 0:30
Easy
What is the SI unit of electric current?
Easy
Which material among the following is a good conductor of electricity?
Medium
The resistance of a wire depends on all the following factors except:
Easy
Which of the following correctly represents Ohm's law?
Hard
If the length of a wire is doubled and its diameter is halved, how does its resistance change?
Easy
In an electric circuit, the potential difference across a resistor is 12 V and the current through it is 2 A. What is the resistance?
Medium
Which of the following devices uses the heating effect of electric current?
Easy
Why are metals good conductors of electricity?
Easy
A wire of resistance 5 Ω is connected to a 10 V battery. What is the current flowing through the wire?
Medium
In India, the domestic electric supply is usually: