Advertisements
Advertisements
Question
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.
 |
 |
| (a) | (b) |
Answer in Brief
Advertisements
Solution
Graph (a) is non-ohmic resistor and
Graph (b) is ohmic resistor.
The I-V graph for (b) is a straight line or linear, while for (a) the graph is a curve.
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
The music system draws a current of 400 mA when connected to a 12 V battery.
- What is the resistance of the music system?
- The music system if left playing for several hours and finally the battery voltage drops and the music system stops playing when the current drops to 320 mA. At what battery voltage does the music system stop playing?
What are non-ohmic reistors? Give one example and draw a graph to show its current-voltage relationship.
Give two difference between an ohmic and non-ohmic resistor.
Write the expressions for the equivalent resistance R of three resistors R1, R2 and R3 joined in
- parallel
- series
