List of top Questions asked in JMI-EEE

A tuning fork arrangement (pair) produces 4 beats/sec with one fork of frequency 288 .cps. A little wax is placed on the unknown fork and it then produces 2 beats/sec. The frequency of the unknown folk is:

A wire when connected to 220V mains supply has power dissipation $ {{P}_{1}} $ . Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is $ {{P}_{2}} $ . Then $ {{P}_{2}}:{{P}_{1}} $ is

If an ammeter is to be used in place of a voltmeter, then we must connect with the ammeter a:

If in a circular coil A of radius R, current $ i $ is flowing and in another coil B of radius 2R a current $ 2i $ is flowing, then the ratio of the magnetic fields, $ {{B}_{A}} $ and $ {{B}_{B}} $ produced by them will be:

If suddenly the gravitational force of attraction between earth and a satellite revolving around it becomes zero, then the satellite will:

If two mirrors are kept at $ 60{}^\circ $ to each other, then the number of images formed by them is: