Three resistors each having value 'R' are connected as shown in the figure. What is the equivalent resistance between 'X' and 'Y'?
Correct answer: C. 3R
- A. R
- B. R/3
- C. 3R
- D. R3
Explanation
The resistors are connected in series so their equivalent resistance would be the sum of resistances of all resistors.R+R+R=3R.
This question appeared on the UHS MDCAT 2013 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Resistance and Resistivity
Resistance measures opposition to current in a conductor and follows R = V/I for an ohmic conductor, while resistivity is an intrinsic property of the material. Questions use R = ρL/A, examine effects of length, cross-sectional area and temperature, and distinguish resistance, resistivity, conductance and conductivity.
Practise Current Electricity
1,052 free Current Electricity MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Resistance and Resistivity questions
The deviation of I-V graph from the straight line is due to:
A 5 ohm resistor is indicated by a single _ colour band around its body.
The length and radius of an electric resistance of a certain wire are doubled simultaneously, then the _.
The resistance between two opposite faces of a square thin film of area 1 mm2 having a thickness of 1 m if the resistivity of the material is 10-6 Ω will be:
Total resistance between 'A' and 'B' in the given circuit is:
A carbon resistor connected to a battery of 50V and 2A current is passing through it. If voltage is increased to 75V then current will be: