Q4: i) Which of the following is true for an induction cooker and a resistance cooker? Induction cooker will have greater percentage loss Resistance cooker will have greater percentage loss Induction cooker will have lower efficiency Both cookers will have equal percentage losses ii) Which of the following is true for induction cooker? The vessel used should be of non-magnetic material The vessel used should be of plastic material The vessel used should be of insulating material The vessel used should be of magnetic material iii) An induction cooker used for efficiency test is rated for 1 kW , 200V, 50 Hz, and is designed to work at unity power factor. Suitable wattmeter to measure its input power will be ______ (150 V/ 5 A) (300 V/10 A) (150 V/ 10 A) (250 V/ 10 A)
Q4:
i)
Which of the following is true for an induction cooker and a resistance cooker?
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Induction cooker will have greater percentage loss |
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Resistance cooker will have greater percentage loss |
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Induction cooker will have lower efficiency |
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Both cookers will have equal percentage losses |
ii)
Which of the following is true for induction cooker?
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The vessel used should be of non-magnetic material |
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The vessel used should be of plastic material |
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The vessel used should be of insulating material |
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The vessel used should be of magnetic material |
iii)
An induction cooker used for efficiency test is rated for 1 kW , 200V, 50 Hz, and is designed to work at unity power factor. Suitable wattmeter to measure its input power will be ______
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(150 V/ 5 A) |
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(300 V/10 A) |
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(150 V/ 10 A) |
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(250 V/ 10 A) |
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