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A 1250 W heater operates at 115V. What i...

A 1250 W heater operates at `115V`. What is the resistance of the heating coil?

A

`1.6Omega`

B

`13.5Omega`

C

`1250Omega`

D

`10.6Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
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DC PANDEY-CURRENT ELECTRICITY-Taking it together
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  2. To send 10% of the main current through a moving coil galvanometer of ...

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  3. A 1250 W heater operates at 115V. What is the resistance of the heatin...

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  4. The resistance of a wire at 20^(@)C is 20Omega and at 500^(@)C is 60Om...

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  5. A conducting wire of cross-sectional area 1 cm^(2) has 3 xx 10^(23) ...

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  6. At room temperature copper has free electron density of 8.4xx10^(28) p...

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  8. A metel rod of the length 10cm and a rectangular cross-section of 1 cm...

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  9. Two cells of emfs approximately 5V and 10V are to be accurately compar...

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  10. The resistivity of a potentiometer wire is 40xx10^(-8)Omega-m and its ...

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  11. Two cells of emfs E(1) and (E(2) (E(1) gt E(2)) are connected as shows...

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  12. A voltmeter of resistance 998 Omega is connected across a cell of emf ...

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  13. A wire of 50 cm long, 1mm^(2) in cross-section carries a current of 4 ...

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  14. Three resistance P, Q, R each of 2 Omega and an unknown resistance S f...

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  15. A 2 V battery, a 990Omega resistor and a potentiometer of 2 m length, ...

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  16. The electron with change (q=1.6xx10^(-19)C) moves in an orbit of radiu...

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  17. Two resistance wires on joining in parallel the resultant resistance i...

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  18. A potentiometer having the potential gradient of 2 mV//cm is used to m...

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  19. The n rows each containinig m cells in series are joined parallel. Max...

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  20. A 100 V voltmeter of internal resistance 20 k Omega in series with a h...

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