Question

A circuit joins points A, B, C and D into a single square loop. The voltage drop from A to B is -5.2V, from B to C is 2.1V, and from C to D is 1.0V. If one were to measure the voltage from C to B, one would obtain:
2.1V
-6.1V
6.1V
-4.1V
4.1V
-2.1V

Answer 1

since it's aclosed loop apply kirchoff's loop rule.total potential drop across the closed loop will be zero

Answer 2

oh sorry i didn't read the question carefully.
it's a very simple problem.if u go from B to C u move 2.1 volts up.now if u go the reverse way u go 2.1 volts down.so now think what the answer should be

Answer 3

-2.1 that what i had predicted

Answer 4

thnx

Answer 5

yes u r right