NEET Physics: Questions 800 - 803 of 2099
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Question number: 800
The induced e. m. f. and current will be same in two identical loops of copper and aluminum, when rotated with same speed in the same magnetic field.
Induced e. m. f. is proportional to rate of change of magnetic field while induced current depends on resistance of wire.
|a.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|
|b.||Ꭺ is true but Ꭱ is false|
|c.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|d.||Ꭺ is false but Ꭱ is true|
Question number: 801
A current of 5A is flowing at 220 V in the primary coil of a transformer. If the voltage produced in the secondary coil is 2200V and 50 % of power is lost, then the current in the secondary coil will be -