CUET Preparation Today
Choose the incorrect statement from the following: |
A transformer can produce ac power A transformer cannot work on dc In a transformer when ac voltage is stepped up x times, the alternating current reduces to $\frac{1}{x}$ times A transformer cannot change the frequency of alternating current |
A transformer can produce ac power |
Transformers are used in electric circuits to change the voltage of electricity flowing in the circuit. It is used to increase the voltage or decrease current (called 'stepping up') or decrease the voltage or increase the current ('stepping down') in AC circuits. A transformer can neither change the frequency or Produce any Power. |
