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Mrac [35]
3 years ago
11

Two unknown resistors are connected together. When they are connected in series their equivalent resistance is 15 Ω. When they a

re connected in parallel, their equivalent resistance is 3.3 Ω. What are the resistances of these resistors?
Physics
1 answer:
DochEvi [55]3 years ago
6 0

Explanation:

Let x and y are two unknown resistors. When they are connected in series their equivalent resistance is 15 Ω. When they are connected in parallel, their equivalent resistance is 3.3 Ω.

For series combination,

x+y=15 ......(1)

For parallel combination,

\dfrac{1}{x}+\dfrac{1}{y}=3.3 ....(2)

We need to find the resistances of these resistors. Solving equation (1) and (2) we get :

x = 0.29 and y = 14.7

Hence, the resistances of these resistors are 0.29 ohms and 14.7 ohms.

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The impulse on the object is 60Ns.

Explanation:

Impulse is defined as the product of the force applied on an object and the time at which it acts. It is also the change in the momentum of a body.

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