Current Electricity

Related Questions

• A 10 ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts

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• Which of the following statement is false

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• Drift velocity ${v_d}$ varies with the intensity of electric field as per the relation

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• A 100 V voltmeter of internal resistance $20\,k\Omega $ in series with a high resistance R is connected to a 110 V line. The voltmeter reads 5 V, the value of R is

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• In a hydrogen discharge tube it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. What is the electric current in the discharge tube and what is its direction

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