Given:
\(\frac{V_1}{V_2} = \frac{N_1}{N_2} = 10 \implies V_2 = \frac{230}{10} = 23 \, \text{V}.\)
Power consumed:
\(P = \frac{V_2^2}{R} = \frac{23 \times 23}{46} = 11.5 \, \text{W}.\)
The Correct answer is: 11.5 W
Assertion : In an ideal step-down transformer, the electrical energy is not lost.
Reason (R): In a step-down transformer, voltage decreases but the current increases.