Physics · 2020
JEE Main · 3 September 2020, Shift 1 · Q20
When a diode is forward biased, it has a voltage drop of 0.5 V. The safe limit of current through the diode is 10 mA. If a battery of emf 1.5 V is…
When a diode is forward biased, it has a voltage drop of $\displaystyle 0.5$ V . The safe limit of current through the diode is $\displaystyle 10$ mA . If a battery of emf $\displaystyle 1.5$ V is used in the circuit, the value of minimum resistance to be connected in series with the diode so that the current does not exceed the safe limit is :
Official answer
(2)
$\displaystyle 100 \Omega$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.