How many MCQ questions are available for Current Electricity?

There are 76 MCQ questions available for Current Electricity (Class 12 Physics) — 20 easy, 39 medium, and 17 hard.

Current Electricity

Q: What topics are covered in Current Electricity?

Key concepts covered: Cells in series and parallel, Drift velocity, EMF and internal resistance, Electric current, Kirchhoff's laws, Meter bridge, Ohm's law, Potentiometer, Power dissipation, Resistance and resistivity, Temperature dependence of resistance, Wheatstone bridge.

Class 12 · Physics

76 questions20 easy39 medium17 hard

Sample Questions

Q1.The resistivity of a conductor depends on:

ALength of the conductor
BArea of cross-section
CMaterial and temperature
DShape of the conductor

Q2.In a potentiometer experiment, a standard cell of emf 1.5 V is balanced at 75 cm. What length balances an unknown emf of 1.0 V?

A100 cm
B50 cm
C75 cm
D112.5 cm

Q3.Three resistors 1 Ω, 2 Ω, and 3 Ω are connected in parallel. The equivalent resistance is:

A6 Ω
B0.5 Ω
C6/11 Ω
D1 Ω

Q4.The emf of a cell is 2 V and internal resistance is 0.5 Ω. When connected to external resistance 1.5 Ω, the terminal voltage is:

A2 V
B1.5 V
C1.0 V
D0.5 V

Q5.A resistor of 10 Ω at 20°C has temperature coefficient 0.004/°C. Its resistance at 70°C is:

A10 Ω
B12 Ω
C11 Ω
D10.2 Ω

Q6.This is a sample question to preview what you'll get in the full practice test...

A. Option one
B. Option two
C. Option three
D. Option four

Create a test to practice all 76 questions →

Concepts Covered

Cells in series and parallelDrift velocityEMF and internal resistanceElectric currentKirchhoff's lawsMeter bridgeOhm's lawPotentiometerPower dissipationResistance and resistivityTemperature dependence of resistanceWheatstone bridge

Ready to practice?

Create a timed test from 76 questions in Current Electricity. Pick your difficulty, get instant scores.

Start Practice Test