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प्रश्न
Name a substance of which the resistance remains almost unchanged by the increase in temperature.
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उत्तर
Manganin
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संबंधित प्रश्न
In series combination which remains constant?
(a) Voltage
(b) Current
(c) Both current and voltage
(d) Both are variables
The V-I graph for a series combination and for a parallel combination of two resistors is shown in the figure below. Which of the two A or B. represents the parallel combination? Give reasons for your answer.
An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be:
(a) 0.92 A
(b) 2.9 A
(c) 9.2 A
(d) 92 A
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If the current I through a resistor is increased by 100% (assume that temperature remains unchanged), the increase in power dissipated will be:
