Question

5kilo ohms
15 kilo ohms
10kilo ohms
2v
1) for the circuit Showm
determine VN​

Answer 1

Answer:

Explanation:

The circuit can be reduced, step by step, to a single equivalent resistance. The 8 ohm and the 8 ohm are connected in parallel , and so they can be replaced by an equivalent resistor Rp of 4 ohms, using the below equation.

Rp=

(8+8)

(8×8)

​

=4ohms

This resistor is connected in series with the 4 ohm resistor R1. The total resistance Rt of the circuit is then

Rt =R1+Rp=4+4 = 8 ohms.

Since the 4 ohm and the 4 ohm are connected in series, they have the same current I1, which must be equal to the current of the battery. Using Ohms law we get,

I=

R

V

​

=

8

8

​

=1A.

Hence, the current flowing through the resistor R1 (4 ohms) is 1A.

Now the power dissipated in the resistor R1 (4 ohms) is given as follows.

P=I

2

R=1

2

×4=1×4=4W.

Hence, the power dissipated in the resistor R1 (4 ohms) = 4W.

Answer 2

Explanation:

Definition of temperature

1a : degree of hotness or coldness measured on a definite scale.

b : the degree of heat that is natural to the body of a living being.

c : abnormally high body heat running a temperature.