All of the following statements are true except:
- AConductance is the reciprocal of resistance and is measured in Siemens.
- BOhm's law is not applicable at very low and very high temperatures.
- COhm's law is applicable to semiconductors.
- DOhm's law is not applicable to electron tubes,discharge tubes,and electrolytes.
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Similar Questions
The variation of current $(i)$ passing through a conductor as the voltage $(V)$ applied across its ends is varied is shown in the adjoining diagram. If the resistance $(R)$ is determined at the points $A, B, C$ and $D$,we will find that
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View SolutionWhich of the following graphs represents an ohmic resistance?
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View Solution$A$ circuit to verify $Ohm's$ law uses an ammeter and a voltmeter. How should they be connected to the resistor?
What conclusion can you draw from the following observations on a resistor made of alloy manganin?
$I (A)$ $V (V)$ $I (A)$ $V (V)$ $0.2$ $3.94$ $3.0$ $59.2$ $0.4$ $7.87$ $4.0$ $78.8$ $0.6$ $11.8$ $5.0$ $98.6$ $0.8$ $15.7$ $6.0$ $118.5$ $1.0$ $19.7$ $7.0$ $138.2$ $2.0$ $39.4$ $8.0$ $158.0$
| $I (A)$ | $V (V)$ | $I (A)$ | $V (V)$ |
| $0.2$ | $3.94$ | $3.0$ | $59.2$ |
| $0.4$ | $7.87$ | $4.0$ | $78.8$ |
| $0.6$ | $11.8$ | $5.0$ | $98.6$ |
| $0.8$ | $15.7$ | $6.0$ | $118.5$ |
| $1.0$ | $19.7$ | $7.0$ | $138.2$ |
| $2.0$ | $39.4$ | $8.0$ | $158.0$ |
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View SolutionThe $V-I$ graph for a conductor at two different temperatures $T_1$ and $T_2$ is shown. The relationship between $T_1$ and $T_2$ is:
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