Last Updated On [03-11-2023]
A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW. If the current in the secondary coil is 10 A, the input voltage and current in the primary coil are :
(a)
440 V and 5V
(b)
220V and 20A
(c)
220V and 10A
(d)
440V and 20A
A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW. If the current in the secondary coil is 10 A, the input voltage and current in the primary coil are :
(a)
440 V and 5V
(b)
220V and 20A
(c)
220V and 10A
(d)
440V and 20A
Question ID - 51328 :-
A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW. If the current in the secondary coil is 10 A, the input voltage and current in the primary coil are :
(a)
440 V and 5V
(b)
220V and 20A
(c)
220V and 10A
(d)
440V and 20A
|
A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW. If the current in the secondary coil is 10 A, the input voltage and current in the primary coil are : |
|||
|
(a) |
440 V and 5V |
(b) |
220V and 20A |
|
(c) |
220V and 10A |
(d) |
440V and 20A |
Power output (V2I2) = 2.2 kW
= 220 volts
Input voltage for step−down transformer
Vinput= 2 × Voutput =2 × 220
=440V
Also
×10=5A
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A uniformly charged ring of radius 3a and total charge q is placed in xy-plane centered at origin. A point charge q is moving towards the ring along the z-axis and has the speed v at z=4a. The minimum value of v such that it crosses the origin is: |
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