A magnetic compass will be deflected if it is kept near a____________________?
Aasma Sajjad
No Comments
A. charge in motion
B. charge at rest
C. both
D. none
Physics MCQ's
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___________________?
Aasma Sajjad
No Comments
A. R=qB/mV
B. R=mV/qB
C. R=qmV/B
D. R=qmB/V
A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?
Aasma Sajjad
No Comments
A. F=1/B
B. F=1/Bsinθ
C. F/0
D. F=1/Bcosθ
If a current carrying solenoid is suspended freely it will__________________?
Aasma Sajjad
No Comments
A. be rotating
B. come to rest in N-S direction
C. vibrating like galvanometer needle
D. comes to rest after rotation
A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?
Aasma Sajjad
No Comments
A. independent mass m
B. directly proportional to m
C. directly proportional to q
D. directly proportional to B
A wheat stone bridge is said to be balanced when____________________?
Aasma Sajjad
No Comments
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 galvanometer basically is an instrument used to ____________________?
Aasma Sajjad
No Comments
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
Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________?
Aasma Sajjad
No Comments
A. BINA cosa
B. BINA sina
C. BINA tana
D. BINA
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__________________?
Aasma Sajjad
No Comments
A. 2.0 mA
B. 20 mA
C. 200 mA
D. 0.2 mA
In a multi range ammeter as the range increases _____________________?
Aasma Sajjad
No Comments
A. shunt value decreases
B. shunt value increases
C. shunt value remains the same
D. none of the above