Chapter 3: Current Electricity
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In parallel circuit, voltage is:
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In series circuit, current is:
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Equivalent resistance in parallel:
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Equivalent resistance in series:
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Balanced Wheatstone bridge:
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Wheatstone bridge is used to:
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Loop rule:
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Junction rule:
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Kirchhoff’s second law is based on:
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Kirchhoff’s first law is based on:
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Maximum current when:
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Internal resistance depends on:
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Cells in parallel increase:
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Cells in series increase:
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When no current flows:
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Formula:
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Terminal voltage:
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Internal resistance is:
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EMF is:
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EMF unit:
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Maximum power transfer occurs when:
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Power factor depends on:
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Efficiency =
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Electric fuse works on:
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Heating effect depends on:
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Power in resistor:
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1 kWh equals:
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Energy formula:
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Unit of power:
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Electrical power:
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Non-ohmic devices show:
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Temperature increase in metals:
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If area doubles, resistance becomes:
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If length doubles, resistance becomes:
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Conductivity is inverse of:
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Resistivity depends on:
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Resistivity unit:
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Resistance depends on:
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Resistance unit:
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Ohm’s law:
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Number of electrons passing per second gives:
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Formula for current is:
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Drift velocity is proportional to:
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Mobility depends on:
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Current density is:
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Charge of an electron is:
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Direction of conventional current is:
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Current is a:
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SI unit of current is:
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Electric current is defined as:
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