Download Aptitude Crack
img not found img not found

Series Circuits

Q1: If R2 opens in the given circuit, what is the voltage at point B?

A +19.2 V

B +8.8 V

C +28 V

D –19.2 V

ANS:C - +28 V

When you have three resistors connected in series with a battery of 28V, and then one resistor is open-circuited (removed from the circuit), the voltage across the remaining resistors will be the same as the battery voltage.

This is because, in a series circuit, the same current flows through all components, and the voltage is divided among the resistors. When one resistor is removed (open-circuited), there is no longer any voltage drop across it, but the battery voltage is still applied to the remaining components.

So, in this case, the voltage across any of the two remaining resistors (which are still connected in series with the battery) will be the same as the battery voltage, which is 28V.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.