muaaz1802 muaaz1802

21-02-2021
Physics

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When a 40V battery is connected across an unknown resistor there is a current of 100 ma in the circuit.

Find the value of the resistance of the resister:

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edios136534150518 edios136534150518

21-02-2021

Answer:

R = 400 ohms.

Explanation: Voltage of the battery, V = 40 V. Current in the unknown resistor I = 100mA. Let R is the resistance of the resistor. It can be calculated using Ohm's law it gives the relationship between the voltage, resistance and current.. R = V/I. R = 40 V/10-¹A. R = 400 Ohm's. So, the value of the resistance of the resistor is 400 Ohm's

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redlyapple redlyapple

21-02-2021

400 ohms because 4 times 100

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