Question

how much is the current in the wire between points a. A and B? b. B and C? c. C and D? d. E and F? e. F and G? f. G and H? g. G and I? h. B and J?

Answer 1

Correct option is C)

1,4&2,3 in parallel separately.

R

eq

=(

4+1

1×4

)+(

2+3

2×3

)

=

5

4

+

5

6

=

5

10

R

eq

=2Ω

i=

R

V

=

2

20

=10A

i=10A

i

1

=

5

4

×10=8A

i

2

=

5

3

×10=6A

i

BD

=i

1

−i

2

=8−6=2A

C

BD

=2A

Option C is correct.