What can be concluded from the following observations on a resistor made up of certain material? Calculate the power drawn in each case.
What can be concluded from the following observations on a resistor made up of certain material? Calculate the power drawn in each case.
| Case | Current (A) | Voltage (V) |
| A | 0.2 | 1.6 |
| B | 0.4 | 3.2 |
| C | 0.6 | 4.8 |
| d | 0.8 | 6.4 |
6 views
1 Answers
i. As the ratio of voltage and current different readings are same, hence ohm’s is valid i.e., V = IR.
ii. Electric power is given by, P = IV
∴ (a) P1 = 0.2 × 1.6 = 0.32 watt
(b) P2 = 0.4 × 3.2 = 1.28 watt
(c) P3 = 0.6 × 4.8 = 2.88 watt
(d) P4 = 0.8 × 6.4 = 5.12 watt
6 views
Answered