Electric Current & Drift Velocity: JEE Questions & Solutions
9 previous-year JEE Physics questions on Electric Current & Drift Velocity, each with a worked step-by-step solution.
Previous-year questions
- 01
A cylindrical conductor of length 2 m and area of cross-section 0.2 mm² carries an electric current of 1.6 A when its ends are connected to…
NVAMediumJEE 2026 - 02
A motor operating on 100 V draws a current of 1 A. If the efficiency of the motor is 91.6%, then the loss of power in units of cal/s is
MCQEasyJEE 2025 - 03
Current passing through a wire as function of time is given as I(t)=0.02t+0.01~A. The charge that will flow through the wire from t=1 ~s to…
MCQEasyJEE 2025 - 04
A current of 200 μ A deflects the coil of a moving coil galvanometer through 60^°. The current to cause deflection through π/10 radians is:
MCQEasyJEE 2024 - 05
The electric current through a wire varies with time as I = I₀ + β t, where I₀ = 20 A and β = 3 A/s. The amount of electric charge that…
MCQEasyJEE 2024 - 06
The charge flowing in a conductor changes with time as Q(t) = α t - β t² + γ t³, where α, β, γ are constants. The minimum value of current…
MCQEasyJEE 2023 - 07
The drift velocity of electrons for a conductor connected in an electrical circuit is V_d. The conductor is now replaced by another…
MCQEasyJEE 2023 - 08
A current of 2 A through a wire of cross-sectional area 25.0 mm². The number of free electrons in a cubic meter is 2.0 × 10²⁸. The drift…
NVAEasyJEE 2023 - 09
In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor:
MCQEasyJEE 2023
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