defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Current, Resistance and Electricity Power in Electric Circuits
An electric bulb is designed to draw power P0 at voltage V0. If the voltage is V it draws a power P. Then:
1
\(\mathbf{P}=\left(\frac{\mathrm{V}}{\mathbf{V}_{0}}\right)^{2} \mathbf{P}_{0}\)
2
\(\mathbf{P}=\left(\frac{\mathbf{V}_{0}}{\mathbf{V}}\right)^{2} \mathbf{P}_{0}\)
3
\(\mathbf{P}=\left(\frac{\mathbf{V}_{0}}{\mathbf{V}}\right) \mathbf{P}_{0}\)
4
\(P=\frac{V}{V_0} P_{0}\)