Physics · 2023
NEET 2023 · 7 May · Code E3 · Q27
A 12 V, 60 W lamp is connected to the secondary of a step down transformer, whose primary is connected to ac mains of 220 V. Assuming the transformer…
A $\displaystyle 12$ V, $\displaystyle 60$ W lamp is connected to the secondary of a step down transformer, whose primary is connected to ac mains of $\displaystyle 220$ V . Assuming the transformer to be ideal, what is the current in the primary winding?
Official answer
From NTA’s final answer key for this paper.
(1)
0.$\displaystyle 27$ A
More from Alternating Current
- An ac voltage V=220 sin (2 × 10^3 t) Volt is applied to a series LCR circuit. Then the current amplitude in…2026
- In an ideal transformer, the turns ratio is N_p/N_s=1/2. The ratio V_s: V_p is equal to (the symbols carry…2024
- The peak value of an alternating current is 5 A and frequency is 60 Hz. How long will the current, starting…2026
- To an ac power supply of 220 V at 50 Hz, a resistor of 20 Ω, a capacitor of reactance 25 Ω and an inductor of…2025
- A 10 μ F capacitor is connected to a 210 V, 50 Hz source as shown in figure. The peak current in the circuit…2024
- An ac circuit contains a resistance of 1 k Ω, a capacitor of 0.1 μ F and an inductor of 1 mH connected in…2026
NEET (UG) 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.