Find the potential drop across 10 - resistor in the given circuit -

The correct option is C 10 VApply Kirchhoff's loop rule in the left side loop: #160; 20+5I_1+10I=0 5I_1+10I=20 I_1+2I=4 Apply Kirchhoff's loop ...

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Byju's Answer

Standard XII

Physics

Transistor as an Amplifier

Find the pote...

Question

Find the potential drop across $10 Ω$ resistor in the given circuit :

5 V

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20 V

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10 V

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12 V

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Solution

The correct option is C 10 V
Apply Kirchhoff's loop rule in the left side loop:
$- 20 + 5 I_{1} + 10 I = 0$
$5 I_{1} + 10 I = 20$
$I_{1} + 2 I = 4$

Apply Kirchhoff's loop rule in right side loop:
$- 8 - 2 (I_{1} + I) + 10 I = 0$
$- 2 I_{1} + 12 I = 8$
$- I_{1} + 6 I = 4$

By adding the above two equations:
$I = 1 A$
Therefore, Potential difference $= 10 I = 10 V$

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