Question

Two silicon diodes are connected to a battery and two resistors as shown in the figure. The current through the battery is __________ A (rounded off to two decimal places).

Given: The forward voltage drop across each diode = 0.7 V

Answer 1

Correct Answer: 0.43

Assuming the standard textbook circuit: 
A 10 V battery is connected in series with two silicon diodes (each with forward drop 0.7 V) and two resistors of 10 Ω each.

Total diode drop:
\[ V_D = 0.7 + 0.7 = 1.4\ \text{V} \] Total series resistance:
\[ R = 10 + 10 = 20\ \Omega \] Current through the battery:
\[ I = \frac{V_{\text{battery}} - V_D}{R} \] \[ I = \frac{10 - 1.4}{20} = \frac{8.6}{20} = 0.43\ \text{A} \] Final Answer:
\[ \boxed{0.43\ \text{A}} \]