An experiment is performed to determine the I - V characteristics of a Zener diode, which has a protective resistance of R = 100 Ω, and a maximum power of dissipation rating of 1 W. The minimum voltage range of the DC source in the circuit is :
← JEE Main 2016 · 9 Apr · Shift 1
PhysicsSingle correct+4 / -1Question 29 of 90
JEE Main 2016 · 9 Apr · Shift 1, Physics question 29
Answer and worked solution
Official answer: C
With the 1 W rating on the 100 Ω protective resistor, the current is limited to A, a 10 V drop across R. The source must exceed this to take the diode through its full range, so the smallest suitable range is 0-12 V.
The question does not give the Zener voltage, so this answer is a best reading and is not certain.