Question

Calculate the power used in the 2ohm resistor in each of the following a 6 volt battery in series with 1 and 2ohmresistor
a 4 volt battery in parallel with 12 and 2 ohm resistor

Answer 1

Answer:

Answer:

The power used by 2 Ω resistor is 8 W.

Explanation:

To find : Compare the power used in 2 ohm resistor in each of the following Circuits,

(1) a 6 V battery in series with 1 ohm and 2 ohm resistors.

(2) a 4 V battery in parallel with 12 ohm and 2 ohm resistor

Solution :

1) The potential difference is V=6V

1 Ω and 2 Ω resistors are connected in series.  

So, Equivalent resistance of the circuit is R=1+2=3 Ω.

According to Ohm’s law

The current through the circuit (I)=2  Ampere.

Now, The power used in the 2 Ω resistor  is given by,

2) The potential difference is V=4V

12 Ω and 2 Ω resistors are connected in parallel.  

The voltage across each component of a parallel circuit remains the same.

The power used in the 2 Ω resistor  is given by,

Answer 2

Answer:

The above answer is correct

I have checked

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