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518
Which electric heating devices in your home do you think have resistors which control the ...
By Satkriti Roao, 4 years ago
replies 1
0
1
174
An electric iron is connected to the mains power supply of 220 V. When the electric iron i...
By Satkriti Roao, 4 years ago
replies 1
0
1
318
Two exactly similar heating resistances are connected (i) in series, and (ii) in parallel,...
By Satkriti Roao, 4 years ago
replies 1
0
1
281
How does the wire in the filament of a light bulb behave differently to the other wires in...
By Satkriti Roao, 4 years ago
replies 1
0
1
243
The electrical resistivities of four materials P, Q, R and S are given below : P - 6.84 x ...
By Satkriti Roao, 4 years ago
replies 1
0
1
575
Derive the expression for the heat produced due to a current ‘I’ flowing for a time interv...
By Satkriti Roao, 4 years ago
replies 1
1
1
404
100 joules of heat is produced per second in a 4 ohm resistor. What is the potential diffe...
By Satkriti Roao, 4 years ago
replies 1
0
1
384
A resistance of 25 Ω is connected to a 12 V battery. Calculate the heat energy in joules g...
By Satkriti Roao, 4 years ago
replies 1
0
1
336
An electric heater of resistance 8Ω takes a current of 15 A from the mains supply line. Ca...
By Satkriti Roao, 4 years ago
replies 1
0
1
370
A heating coil has a resistance of 200 Ω. At what rate will heat be produced in it when a ...
By Satkriti Roao, 4 years ago
replies 1
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