In a multi range ammeter as the range increases _____________________?
A. shunt value decreases B. shunt value increases C. shunt value remains the same D. none of the above
Physics MCQs with Answers
Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________?
A. BINA cosa B. BINA sina C. BINA tana D. BINA
A galvanometer basically is an instrument used to ____________________?
A. detect current in a circuit B. measure current flowing through a circuit C. measure voltage across a circuit D. measure potential difference between two points in a circuit
A wheat stone bridge is said to be balanced when____________________?
A. maximum current flows through the galvanometer branch B. minimum current flows through the galvanometer branch C. potential difference across galvanometer branch is maximum D. potential difference across galvanometer branch is zero
A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?
A. independent mass m B. directly proportional to m C. directly proportional to q D. directly proportional to B
If a current carrying solenoid is suspended freely it will__________________?
A. be rotating B. come to rest in N-S direction C. vibrating like galvanometer needle D. comes to rest after rotation
A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?
A. F=1/B B. F=1/Bsinθ C. F/0 D. F=1/Bcosθ
A magnetic compass will be deflected if it is kept near a____________________?
A. charge in motion B. charge at rest C. both D. none