The current in a self-inductance L=40 mH is to be increased uniformly from 1A to 11 A
The current in a self-inductance L=40 mH is to be increased uniformly from 1A to 11A in 4 ms. The…
7 years ago
UK2014
In a potentiometer experiment, the balancing with a cell is at length 240 cm.
In a potentiometer experiment, the balancing with a cell is at length 240 cm. On shunting the cell with a…
7 years ago
Potentiometer measures the potential difference more accurately than a voltmeter
Potentiometer measures the potential difference more accurately than a voltmeter because Options (a) it does not draw current from external…
7 years ago
A step-up transformer operates on a 230 V line and supplies a current of 2 A.
A step-up transformer operates on a 230 V line and supplies a current of 2 A. The ratio of primary…
7 years ago
A thin glass(refractive index 1.5) lens has optical power of -5D in air.
A thin glass(refractive index 1.5) lens has optical power of -5D in air. Its optical power in a liquid medium…
7 years ago
A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular to a magnetic field of…
7 years ago
A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale deflection. To convert this galvanometer to a…
7 years ago
A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
A bar magnet of moment M and pole strength m is cut into parts of equal lengths. The magnetic moment…
7 years ago
A charged particle of mass m and charge q moves along a circular path of radius
A charged particle of mass m and charge q moves along a circular path of radius r that is perpendicular…
7 years ago
In Young’s double slit experiment, the ratio of maximum and minimum intensities
In Young's double slit experiment, the ratio of maximum and minimum intensities in the fringe system is 9:1. The ratio…
7 years ago