Question

the circuit shown, it is given that VBD = 14 Volts and VAD = 50 Volts. Find R.

Answer 1

Answer:

Power is related to current and resistance by P=I

2

R . The resistor that has the most current would be R

1

.

Since all the other resistor share a current that is split from the main current running from battery to R

1

Since R

eq

<R

1

, the most power is thus dissipated through R

1

option A is correct.

Explanation:

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Answer 2

The resistance would be 2 ohms

Given:

VBD = 14 Volts

VAD = 50 Volts

To Find:

Total resistance in the circuit.

Solution,

Let's assume the currents flowing in the circuit is 1 amp.

So,

By combining Ohm's Law and Power we get,

(R) [R= V/I] R = V/I

For VBD ,

(R1) [R1= V/I] R1 = V/I............. equation 1

By Putting the value of VBD in the equation 1 we get,

R1 = 1

For VAD ,

(R2) [R2= V/I] R2 = V/I............. equation 2

By Putting the value of VAD in the equation 2 we get,

R2 = 1

Therefore,

Total resistance R = R1 + R2

Hence, Total resistance of the circuit is 2 ohms