Q.30 please solve this question...

Q.30 please solve this question... 30. of Find the current flowing through the zener diode, in following figure. IKQ 2KQ 20 v (1) 12.5 mA (2) 30 mA (3) 15 mA (4) 20 mA

Dear Student

Let current in zener diode is I2Voltage across zener diode = 5V So voltage drop across 1KΩ is 15VV = I×R15 = I×1000ΩI = 0.015AVoltage across 2KΩ is 5VV = I×R15 = I×2000ΩI1 =0.0075AI = I1+I2I2 = 0.015-0.0075 = 0.0075A

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(1) 12.5 15 mA through 1Kohm resistance and 2.5 mA through 2Kohm resistance. Subtract both to get answer
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