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Three equal resistor connected in series across a source of enf together dissipate `10 Watt`. If the same resistors aer connected in parallel across the same emf, then the power dissipated will be

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Three equal resistors connected in series across a source emf together dissipate 4 watt.If the same resistors are connected in parallel across the same emf the power dissipate will be

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Three equal resistors connected in series across a source of emf together dissipate 10W of power. What would be the power dissipated if te same resistors are connected in parallel across the same source of emf?

(a) Two heater coils made of the same material are connected in paralled across the mains. The length of diameter of one the coil is triple that of other. Which of these will produce more heat? (b) Three equal resistors connected in series across a source of emf together dissipated 10 Watt of power. What would be the power disspated if the same resistors are connected in parallel across the same source of emf? Two resistor R_(1) and R_(2) may be connect either in series or in parellel across a battery of zero internal resistance. it is required that joule heating for the parallel combination be four times than for series combination. if R_(1)= 100 Omega find R_(2) (d) The three resistance A, B and C have values 3R, 6R and R respectively. Now some potential difference is applied across the network . Find the ratio of thermal powers dissipated between X and Y . find ratio of power consumed by A,B, and C .

Three equal resistors connected in series across a source of e.m.f. together dissipate 10 W of power. What should be the power dissipated if the same resistors are connected in parallel across the same source of e.m.f.

Three identical resistors, each of resistance R, when connected in series with a d.c. source, dissipate power X. If the resistors are connected in parallel to the same d.c. source, how much power will be dissipated ?

Three identical resistors, each of resistance R, when connected in series with a d.c. source, dissipata power X. if the resistors are connected in parallel to the same d.c. source, how much power will be dissipated?

3 identical bulbs are connected in series and these together dissipate a power P . If now the bulbs are connected in parallel, then the power dissipated will be

PHYSICS GALAXY - ASHISH ARORA-CURRENT ELECTRICITY-All Questions
  1. In the circuit shown in figure-3.391, V(1) and V(2) are two voltmeters...

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  2. A copper wire iis stretched to make it 0.1% longer. What is the percen...

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  3. Three equal resistor connected in series across a source of enf toget...

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  4. In the circuit shown in figure-3.392, find the power supplied by 10 V ...

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  5. Calculate the charge on each capacitor and the potential difference ac...

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  6. Calculate the potential of point A in the circuits shown in figure-3.3...

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  7. In the circuit shown in figure-3.395, find the charges on capacitors o...

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  8. A capacitor of capacitance C has potential difference E/2 and another ...

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  9. Initially, the switch is in position 1 for a long time. At t = 0, the ...

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  10. A charged capacitor C1 is discharged through a resistance R by putting...

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  11. A capacitor with capacitance C = 400 pF is connected via a resistance ...

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  12. The capacitors are initially uncharged. In a certain time the capacito...

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  13. A time varying voltage is applied to the clamps A and B such that volt...

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  14. In the given circuit the switch ils closed in the positin 1 at t=0 and...

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  15. A metal ball of radius a is surrounded by a thin concentric metal shel...

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  16. The space between two conducting concentric spheres of radii a and b...

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  17. The power of resistor is the maximum power the resistor can safely dis...

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  18. An electric heater has coil resistance of 12 Omega and is operated fro...

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  19. A copper wire having cross-sectional area 0.5mm^(2) and a length 0.1 m...

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  20. figure-3.402 shows two lamps L(1) and L(2) in series and connected acr...

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