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प्रश्न
Give two difference between an ohmic and non-ohmic resistor.
फरक स्पष्ट करा
उत्तर
| Ohmic resistor | Non-ohmic resistor | |
| 1. |
V/I remains constant regardless of the value of V or I, as it follows Ohm's law. |
V/I is not constant and does not remain the same for all values of V or I since it does not follow Ohm's law. |
| 2. | A straight line represents the relationship between current I and projected V. | A straight line does not appear on the graph that plots current I against potential difference. |
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Ohmic and Non-ohmic Resistors
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The following figure shows the I-V characteristic curves for two resistors. Identify the ohmic and non-ohmic resistors. Give a reason for your answer.
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| (a) | (b) |
Write the expressions for the equivalent resistance R of three resistors R1, R2 and R3 joined in
- parallel
- series
