The resistance value of the sliding rheostat is 15 ohms.
What is resistance?
Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms.
Total resistance of the circuit
The total resistance of the circuit can be calculated from the total current in the circuit and the total voltage in the circuit.
R = V/I
R = 50 /2
R = 25 ohms
Resistance value of the sliding rheostat
The resistance value of the sliding rheostat is calculated as follows;
R(rheostat) = 25 ohms - 10 ohms = 15 ohms
Thus, the resistance value of the sliding rheostat is 15 ohms.
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