Question

3 resistors of 3ohm ,10ohm amd 15 ohm are connected in series and the combination is connected to a battery of 30volt. Ammeter and voltmeter is connected in the circuit.Draw the circuit daigram and to connect all the devices in proper order .What is the current flowing and potential difference across 10 ohm resistance

Answer 1

» According to question :-

» Total Resistance = R1 + R2 + R3

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=> R1 = 3 ohm

=> R2 = 10 ohm

=> R3 = 15 ohm

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=> R1 + R2 +R3 = 3 + 10 + 15 = 28 ohm

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» We know that :-

=> V = RI

=> I = V/R

=> I = 30/28

=> I = 15/14 A

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» Thus, the Voltage Along 10 ohm Resistance

=> IR2 = 15/14 × 10

=> 75/7 V = 10.72 V
______________[ANSWER]

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Answer 2

Heya!
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➖◾R1 - 3 Ohm

➖◾R2 - 10 Ohm

➖◾R3 - 15 Ohm .


⭐We Know , Equivalent Resistance in Series Combination is Given By :


♦Rs = R1 + R2 + R3


=> Rs = 3 + 10 + 15


=> 28 Ohm..................|1.|



◾➖Using Ohm's Law ,


=> V = I• R


=> 30 = 28I


=> Current I = 30/28 = 15/14......................|2.|



⭐Now, Potential Difference across the 10 Ohm Resistor ->


=> I × R2 = 15/14 × 10


=> 10.72 V



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