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Electrical Energy and Power for GSEB: 5 solved questions

Real GSEB paper questions on electrical energy and power, part of current electricity. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2015 to 2021. No sign-in needed to read them.

What this topic asks

• Heating and power in resistors — 3 questions
• Rated bulbs and appliances — 2 questions

All 5 questions with solutions

• If the current in an electric bulb increases by 1%, what will be the change in the power of the bulb? (Assume… GSEB Board July 2015
• If the current in an electric bulb increases by 2%, what will be the change in the power of the bulb? (Assume… GSEB Board March 2018
• Two bulbs of 220 V and 100 W are first connected in parallel and then in series with a supply of 220 V. Total… GSEB Board March 2019
• A light bulb is rated at 100 W for a 220 V supply. The resistance of the bulb is ohm. GSEB Board July 2021
• A device has power P at voltage V. The connecting wires from the power station to the device have a finite re… GSEB Board July 2021