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प्रश्न
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उत्तर
Features which provide greater efficiency to a transformer are:
(i) The core of the transformer is laminated which prevents the formation of eddy currents.
(ii) A closed soft-iron core is used which reduces the magnetic field link loss and hysteresis loss.
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संबंधित प्रश्न
Fill in the blank:
To increase the effective resistance in a circuit the resistors are connected in _____________.
Draw the electrical symbols of the following components and state its use
Wire crossing
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(a) List the bulbs in order of increasing brightness.
(b) If C burns out, what will be the brightness of A now compared with before?
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