Question

28) Assertion: The power is produced when a transformer steps up the voltage. Reason: In an ideal transformer VI = constant.
what is answer ​

Answer 1

Answer:

Q1.If the lines représented by 3x+ 2ky = 2 and 2x +5y = -1 are parallel, then the value of k is

Answer 2

Assertion: The power is produced when a transformer steps up the voltage. Reason: In an ideal transformer VI = constant.

The assertion is false but the reason is true.

• Because the provided power remains constant, when a transformer levels up the input voltage, the voltage increases but the current falls. Without accounting for any energy loss, the power remains constant, and hence no energy is created. It's persistent.
• A transformer is indeed a basic electrical device that comprises 2 coils twisted around a conductor and operates on the electromagnetic principle. The alternating current on the transformers' main winding causes a fluctuating magnetic flux on the core, which causes an electromotive force on the secondary winding. As a consequence of the main winding's electromagnetic induction, a secondary current is generated.
• There'll be no loss in an ideal transformer, which implies it does have sufficient core magnetic properties or winding inductances.
• Because it is a transformer, the current introduced will be alternating current, resulting in alternating current and voltage. Regardless of the certainty that the primary, as well as secondary coils, provide the same amount of electricity, the current and voltage produced by each coil may differ.