in households circuit, a fan of resistance 200 ohms, a bulb of 100 ohms and a TV of 100 ohm is connected to a main circuit of 220 V. what is the total resistance in the circuit and current through the main supply?
Answers
Answered by
0
Answer:
400Ω and 1.81A
Explanation:
200 om + 100 om + 100 om = 400 om
I= R/V
I = 11/20
i= 1.81 A
Answered by
1
Answer:
The total resistance in the circuit is 40Ω, and the current through the main supply is 5.5 A.
Explanation:
In household circuits, the resistors are connected in parallel combinations.
The resistance of the fan is (R₁)=200Ω
The resistance of the bulb is (R₂)=100Ω
The resistance of the TV is (R₃)=100Ω
The total resistance is given as,
(1)
By putting the values in equation (1) we get;
(2)
The current through the main supply is given as,
(3)
By substituting the values in equation (3) we get;
(∵V=220 given)
Hence, the total resistance in the circuit is 40Ω, and the current through the main supply is 5.5 A.
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