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Current Electricity & Circuits
NEET Physics • 10 questions • Free on ExamBattle
Practice Questions
Q1
Kirchhoff's Voltage Law (KVL) states that in any closed loop:
- A. Sum of currents = 0
- B. Sum of EMFs = sum of potential drops
- C. Total resistance = 0
- D. Current is constant
Q2
A galvanometer can be converted into an ammeter by connecting:
- A. High resistance in series
- B. Low resistance (shunt) in parallel
- C. Capacitor in series
- D. Inductor in series
Q3
In a Wheatstone bridge, if P/Q = R/S, the galvanometer reads:
- A. Maximum current
- B. Zero (balanced)
- C. Total current
- D. Half the current
Q4
The potentiometer works on the principle that:
- A. No current flows in circuit
- B. EMF ∝ length of wire at balance
- C. Resistance is variable
- D. Voltage is amplified
Q5
The internal resistance of a cell causes:
- A. Terminal voltage to exceed EMF
- B. Terminal voltage to be less than EMF
- C. No effect on terminal voltage
- D. EMF to increase
Q6
The meter bridge works on the principle of:
- A. Faraday's law
- B. Wheatstone bridge
- C. Lenz's law
- D. Ohm's law only
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