IB Physics Internal Resistance
/A sheet on topic 6.3 is given below
- A battery of emf 6.0 V is connected to an 8 Ω resistor causing a current of 0.5 A to flow. What current flows when a 4 Ω is placed in the circuit?
- A battery of emf 12 V has an internal resistance of 2 Ω. The battery is connected to a 6 Ω load resistor. (a) What is the power of the battery? (b) What is the power of the load resistor? [13.5W, 13.5W]
- A battery of emf 12 V has an internal resistance r. When the battery is connected to a 8 Ω resistor the power of the 8 Ω is 11.5 W. What is the value of r? [2 Ω]
- Is the power of the load resistor always equal to the power of the battery?
- Is the power of the internal resistance always equal to the power of the load resistor?
