Question

The current passing through a circuit is 7.2A and the power at the terminals is
27 watts.
Existence is
ohms.
0 0.5402
O 0.5792
0 0.5972
0.5208




pls answer quickly​

Answer 1

Answer:

0.5208ohm

Explanation:

p=vi

27=v×7.2

v×7.2=27

v=27/7.2

v=3.75

now,

R=V/I

R=3.75/7.2

R=0.5208ohm

Answer 2

Answer:

The current passing through a circuit is 7.2A and the power at the terminals is 27 watts. Existence is 0.5208 ohms.

Option number D.

Explanation:

• Here in this given question we are asked to find out the ecistence.
• We are provided with some of the information. The given information is- The current which is passing through the circuit is 7.2 A. Also the power on the terminals is given to be 27 watts.
• As we all know, the formula-

$p=vi$

That is the value of "v" is (iR).

Therefore after putting the value of v in above equation, we get-

$p= (iR)i$

Multiplying and further solving the above equation.-

$p= i^{2} R\\R=\frac{P}{i^{2} }$

Now putting all the given values in the above equation we get-

$\frac{27}{(7.2)^{2} } \\0.5208 ohms$

Hence, the value of existence is 0.5208 ohms.

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