In a multi range ammeter as the range increases _____________________? April 17, 2025 by admin A. shunt value decreases B. shunt value increases C. shunt value remains the same D. none of the above
A sensitive galvanometer gives full-scale deflection with 100 mV. If the resistance of the galvanometer is 50? the maximum current that can flow through safely is__________________? April 17, 2025 by admin A. 2.0 mA B. 20 mA C. 200 mA D. 0.2 mA
Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________? April 17, 2025 by admin A. BINA cosa B. BINA sina C. BINA tana D. BINA
A galvanometer basically is an instrument used to ____________________? April 17, 2025 by admin 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____________________? April 17, 2025 by admin 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_________________? April 17, 2025 by admin 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__________________? April 17, 2025 by admin 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 _____________________? April 17, 2025 by admin A. F=1/B B. F=1/Bsinθ C. F/0 D. F=1/Bcosθ
When a particle of charge q and mass m enters into a uniform magnetic field B moving with a velocity v perpendicular to the direction for the field it describes a circular path of radius___________________? April 17, 2025 by admin A. R=qB/mV B. R=mV/qB C. R=qmV/B D. R=qmB/V
A magnetic compass will be deflected if it is kept near a____________________? April 17, 2025 by admin A. charge in motion B. charge at rest C. both D. none
