Challenger App

No.1 PSC Learning App

1M+ Downloads
A given resistance R is cut into 2 equal parts. The resistance of each part is?

A2R

BR/4

CR

DR/2

Answer:

D. R/2

Read Explanation:

When resistance R is halved, each part has a resistance of R/2. Resistance of each part is R/2. Resultant resistance R' is given by 1/R' = 2/R+2/R R'=R/4.


Related Questions:

An electric heater is rated 2200 W at 220 V. The minimum rating of the fuse wire to be connected to the device is?
X-Ray കണ്ടുപിടിച്ച ശാസ്ത്രജ്ഞൻ ആര് ?
മാക്സിമം ലിമിറ്റ് സൈസും മിനിമം ലിമിറ്റ് സൈസും തമ്മിലുള്ള വ്യത്യാസത്തെ ________ പറയുന്നു.
The flux used in soldering steel sheet?
Pulsars are stars that give off preciselly spaced bursts of radiation. Which of the following is responsible for this phenomenon.