The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12Ω. Galvanometer resistance is_____________?

Related Mcqs:

What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N ?

A. 1A B. 10A C. 100A D. 1000A...

Two parallel wires carrying currents in the opposite directions____________________?

A. repel each other B. attract each other C. have no effect upon each other D. they cancel out their individual magnetic fields...

A magnetic field___________________?

A. always exerts a force on a charged particle B. never exerts a force on a charged particles C. exerts a force if the charged particle is moving in the direction of the magnetic field lines D. exerts a force if the charged particle is moving perpendicular to the magnetic field lines...

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...

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___________________?

A. R=qB/mV B. R=mV/qB C. R=qmV/B D. R=qmB/V...