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CBSE Class 10 Answered

an electric bulb is marked 25w,220 v.it is used for 10 hoursdaily.calculate 1)its resistance while glowing 2)energy consumed in kWh per day
Asked by Praveen Kumar | 12 Sep, 2013, 06:12: PM
Expert Answer
The resistance of bulb will be given as
 
The energy consumed in a day is
Answered by Romal Bhansali | 13 Sep, 2013, 10:08: AM

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CBSE 10 - Physics
Pls answer fast... In a resistive circuit, if the current is increased to two times the percentage change in the amount of heat dissipated in the circuit would be a) 400% b) 300% c) 200% d) 100%
Asked by anubhutiupadhaya | 04 Mar, 2023, 03:16: PM
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CBSE 10 - Physics
Two wires of copper have the same length but cross-sectional area in the ratio of 3:1. The resistance of the thicker wire is 12 ohm. (a) Calculate the resistance of the thinner wire. (b) Find the equivalent resistance of both these wires, when they are connected (1) in series (ii) parallel (c) If both the wires are connected in parallel to a battery of 24 volt, then find out the ratio of heat produced in the thicker wire to the thinner wire identify the wire if both of them are connected to the same source for the same time duration.
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CBSE 10 - Physics
When a glass rod is rubbed with a piece of silk it acquires +10 micro coulomb of charge. How many electrons have been transferred from glass to silk?
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CBSE 10 - Physics
active attachment
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CBSE 10 - Physics
if one microampere current flows through a conductor for 10 seconds how many electrons will pass at the point of cross section
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CBSE 10 - Physics
In a household five tube lights of 40 volt each are used for 5 hours and electric press of 500 volt for 4 hours everyday. Calculate the total energy consumed by the tubelight and press in a month of 30 days
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CBSE 10 - Physics
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CBSE 10 - Physics
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Asked by sr558079 | 27 May, 2022, 01:40: PM
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CBSE 10 - Physics
A wire of length 22.5 cm and resistance was 20 © and the diameter was 0. 3mm then what is the resistivity  of the material .  
Asked by hgiri2006 | 06 May, 2022, 10:28: PM
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