Question

obtain an expression for the effective resistance when a number of resistors are connected in series​

Answer 1

Answer:

In series current is constant

V=V

1

+V

2

IR=IR

1

+IR

2

R=R

1

+R

2

In parallel voltage is constant

I=I

1

+I

2

R

V

=

R

1

V

+

R

2

V

R

1

=

R

1

1

+

R

2

1

Answer 2

Answer:

for series

VS=V1+V2+V3

BY OHMS LAW =V=IR

SO

IRS=IR1+IR2+IR3

IRS=I(R1+R2+R3)

RS=R1+R2+R3

HENCE OBTAINED !

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