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A diamagnetic material in a magnetic field moves
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Important Questions on Physics
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The primary winding of a transformer has 100 turns and its secondary winding has 200 turns. The primary is connected to an AC supply of 120 V and the current flowing in it is 10 A. The voltage and the current in the secondary are
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Ferromagnetic show their properties due to
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A transformer having an efficiency of is working on , power supply. If the current in the secondary coil is , then the voltage across the secondary coil and the current in the primary coil respectively, are
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A transformer with efficiency works at and . If the secondary voltage is then the primary and secondary currents are respectively
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Dimensional formula of magnetic flux is
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The reading of a high resistance voltmeter, when a cell is connected across it is . When the terminals of the cell are also connected to a resistance of as shown in the circuit, the voltmeter reading drops to . The internal resistance of the cell is:
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The electrolytic conductance of a solution in a electrolytic cell is a direct measure of
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What is the potential difference between points in the circuit shown?
