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Three equal resistors connected in se...

Three equal resistors connected in series across a source of EMF together dissipate 10 W of power . What woulb be the power dissipate . If the same resistance are connected in parallel to the same source .Then .

A

60 watt

B

90 watt

C

100 watt

D

30 watt

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The correct Answer is:
B
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RESONANCE ENGLISH-CURRENT ELECTRICITY-Exercise-1 (Part-2)
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  2. Four identical bulbs each rated 100 watt, 220 volts are connected acro...

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  4. The given Wheatstone bridge is showing no deflection in the galvanom...

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  5. Three equal resistances, each of ROmega are connected as shown in figu...

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  6. A wire of resistance 0.1 cm^(-1) bent to form a square ABCD of side 10...

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  7. In the circuit shown in Fig. 7.39, the heat produced in the 5 Omega re...

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  8. A 50 W bulb is in series with a room heater and the combination is con...

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  9. The equivalent resistance between the points A and B is

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  10. A battery of internal resistance 4 Omega is connected to he network of...

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  11. In these circuits all the batteries are indentical and have negllgible...

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  12. Two nonideal batteries are connected in parallel. Consider the followi...

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  13. Twelve cells each having the same emf are connected in series and are ...

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  14. Two cells of e.m.f. 10V & 15V are connected in parallel to each other ...

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  15. N sources of current with different emf's are connected as shown in Fi...

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  16. The reading of voltmeter is

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  17. The length of a wire of a potentiometer is 100 cm, and the emf of its ...

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  18. The current through the ammeter shown in figure is 1 A. If each of the...

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  19. The ammeter shown in figure consists of a 480 Omega coil connected in ...

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  20. A galvanometer, together with an unknown resistance in series, is conn...

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