Assertion (A): A step-up transformer cannot be used as a step-down transformer. Reason…
Physics · Class 12 · CBSE — Alternating Current
Assertion (A): A step-up transformer cannot be used as a step-down transformer.
Reason (R): A transformer works only in one direction.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
(D) A is false but R is true.
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- In a uniform magnetic field B a wire in the form of a semicircle of radius r rotates about the diameter of…
- An alternating current is given by I = I _ 0 (100 ) t . The least time the current takes to decrease from its…
- A 44 mH inductor is connected to 220 V, 50 Hz ac supply. The rms value of the current in the circuit is
- A transformer has 100 turns in the primary coil and carries 8 A current. If input power is 1 kW, the number…
- The number of turns between different pairs of output terminals are shown for a step-up transformer. Input…
- A 100 resistor is connected to a 220 V, 50 Hz ac supply. The rms value of current in the circuit is
- A power transmission line feeds input power at 2400 V to a step down transformer with its primary windings…
- A capacitor of capacitance C has reactance X in an ac circuit. If the capacitance and the frequency of the…
More Alternating Current questions · Browse all practice questions