Question

A diode is forward biased by 0.7 V. If the forward resistance is 10 $\Omega$, the current through the diode is:

• A. 0.007 A
• B. 0.07 A
• C. 0.7 A
• D. 7 A

Hint:

A simple application of Ohm's Law ($I = V/R$) is sufficient here.
Always pay attention to units: $0.7 / 10 = 0.07\text{ A}$ (or $70\text{ mA}$).
In exams, make sure you do not misplace the decimal point.

Answer 1

The Correct Option is B

Step 1: Ohm's law.
$I = V/R = 0.7/10$
\[ \boxed{I = 0.07 \text{ A}} \]