Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by whitelisting our website.

Electromagnetism

A wheat stone bridge is said to be balanced when____________________?

Electromagnetism, Physics Mcqs /
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 wheat stone bridge is said to be balanced when____________________? Read More »

Electromagnetism, Physics Mcqs

Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________?

Electromagnetism, Physics Mcqs /
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

Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________? Read More »

Electromagnetism, Physics Mcqs

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__________________?

Electromagnetism, Physics Mcqs /
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__________________?

A. 2.0 mA
B. 20 mA
C. 200 mA
D. 0.2 mA

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__________________? Read More »

Electromagnetism, Physics Mcqs

When the coil of the galvanometer is in equilibrium then the deflecting couple is____________________?

Electromagnetism, Physics Mcqs /
When the coil of the galvanometer is in equilibrium then the deflecting couple is____________________?

A. zero
B. equal to the restoring couple
C. greater than the restoring couple
D. smaller than the restoring couple

When the coil of the galvanometer is in equilibrium then the deflecting couple is____________________? Read More »

Electromagnetism, Physics Mcqs

An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?

Electromagnetism, Physics Mcqs /
An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?

A. E = BeV
B. B = eE/V
C. E = BV
D. E = BeV/2

An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________? Read More »

Electromagnetism, Physics Mcqs