Last Updated On [03-11-2023]
The electric resistance of a certain wire of iron is 
If its length and radius are both doubled, then
a)
The resistance will be doubled and the specific resistance will be halved
b)
The resistance will be halved and the specific resistance will remain unchanged
c)
The resistance will be halved and the specific resistance will be doubled
d)
The resistance and the specific resistance, will both remain unchanged
The electric resistance of a certain wire of iron is If its length and radius are both doubled, then
a)
The resistance will be doubled and the specific resistance will be halved
b)
The resistance will be halved and the specific resistance will remain unchanged
c)
The resistance will be halved and the specific resistance will be doubled
d)
The resistance and the specific resistance, will both remain unchanged
Question ID - 151021 :-
The electric resistance of a certain wire of iron is If its length and radius are both doubled, then
a)
The resistance will be doubled and the specific resistance will be halved
b)
The resistance will be halved and the specific resistance will remain unchanged
c)
The resistance will be halved and the specific resistance will be doubled
d)
The resistance and the specific resistance, will both remain unchanged
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The electric resistance of a certain wire of iron is |
|
|
a) |
The resistance will be doubled and the specific resistance will be halved |
|
b) |
The resistance will be halved and the specific resistance will remain unchanged |
|
c) |
The resistance will be halved and the specific resistance will be doubled |
|
d) |
The resistance and the specific resistance, will both remain unchanged |
specific resistance doesn’t depend upon length, and radiusNext Question :
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Two diodes have resistance 20 |
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a) |
0.05 A |
b) |
45 mA |
c) |
0.25 A |
d) |
25 mA |
and is centretapped with rms secondary voltage from centre tap to each end of secondary 50 V. If external resistance is 980 
What is mean load?View Topper Answer
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