Problems: Potential divider

IB Physics: Problems: Potential divider

1. A voltmeter with resistance 10kΩ is used to measure the pd across the 1kΩ resistor in the circuit below.Calculate the percentage difference between the value with and without the voltmeter.2. A potential divider cct is made by stretching a 1m long wire with a resistance of 0.1Ω per cm from A to B as shown.A varying PD is achieved across the 5Ω resistor by moving the slider along the resistance wire. Calculate...


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