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Three bulbs,each having a resistance of ...

Three bulbs,each having a resistance of `180(Omega)`are connected in parallel to an ideal battery of emf60V. Find the current delivered by the battery when (a)all the bulbs are switched on,(b)two of the bulbs are switched on and (c )only one bulb is switched on.

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The correct Answer is:
(a) 1 A
(b) `2/3 A`
( c) 1/3 A`
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RESONANCE-CURRENT ELECTRICITY-Exercise-1 (Part-1)
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  3. ABCD is a square where each side is a uniform wire of resistance 1Omeg...

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  4. Suppose you have three resistor of (20 omega),(50Omega)and (100 Omega)...

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  6. Consider the circuit shown in figure. Find the current through the 10O...

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  8. In the figure each cell has an emf of 1.5 V and internal resistnce of ...

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  9. In the circuit shown all live resistors have the same volue 200 oms an...

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  10. Find the currents through the three resistors shown in figure

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  11. Find the value of i(1)//I(2)in figure if (a)R=0.1(Omega) (b)R=1(Omega)...

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  12. A galvanometer has a resistance of 30 Omega, and a current of 2 mA is ...

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  13. A voltmeter of resistances 400(Omega)is used to measure the potential ...

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  14. An electrical circuit is shown in figure. Calculate the potential diff...

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  15. A battery of emf 1.4 V and internal resistance 2 Omega is connected to...

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  16. A potentiometer wire AB having length L and resistance 12 r is joined ...

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  17. Figure 6.13 shows a 2.0 V potentiometer used for the determination of ...

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  18. The figure shows a potentiometer using a cell E of emf 2.0 V and inter...

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  19. Figure 6.32 shows a meter bridge in the (which is nothing but a partic...

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  20. Connect a battery to the terminals and completer the circuit diagram f...

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