Question

Q. 4 Three resistors of resistances 10 Ω, 20Ω, and 30Ω are connected in parallel with a 9V battery. Calculate
a. Total effective resistance.
b. Value of current through each resister​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

a) Current through each resistor:

For parallel combination of resistor, potential

difference across each resistor is same.

Current through 10 e resistor is,

V = IR

V= 9V

R =100

Thus, 11 = 9/10 = 0.9 A

=

b) Current through 20 resistor,

12 = 9/20 = 0.45 A

Current through 30 resistor is,

13 = 9/30 = 0.3 A

Total current in the circuit is,

| = 11+ 12 + 13 = 0.9 + 0.3 + 0.45 = 1.65 A

Thus, total current flowing through the circuit is

1.65 A.

c) Effective resistance:

The resistors are connected in parallel,

check image .