Discussion
Calculate the current ‘I’ flowing in the given circuit.
Answer: B
The circuit is a 100 V source across a single 50 ohm resistor, so by Ohm's law the current is the voltage divided by the resistance.
\[ I = \frac{V}{R} = \frac{100}{50} = 2\ \mathrm{A} \]
So the current is 2 A, option (B). The value 20 A would need a resistance of 5 ohms, 1 A would need 100 ohms and 0.5 A would need 200 ohms, none of which is in the circuit, and there is only one resistor, so no division of current takes place.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development