Q no 8 pls...

Dear student,

b) is the correct option.

Explanation:  Domestic circuits are indeed connected in parallel and parallel circuits have different current in each branch of the parallel connection but this is not the reason behind parallel connection.
The reason behind parallel connection is that each appliance get same voltage supply, each appliance has its own switch that can turn it on or off without affecting other appliances and also if one of the appliance stops working, the other appliances will still be working properly.

Regards

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Dear student,

Different electrical appliances in a domestic circuit are connected in parallel due to following reasons:

1. In a parallel connection, if one of the appliances is switched off or gets fused, there is no effect on the other appliances and they keep on running.
2. In parallel connection, the same voltage and current of the mains line is available for all the electrical appliances.

So, the correct option is a) Both Aand R are true, and R is correct explanation for the assertion.

Regards
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Dear student,

Assertion: Domestic circuits are connected in parallel.
Reason: Parallel circuits have different current in every part of the circuit.
 

Different electrical appliances in a domestic circuit are connected in parallel because of the following advantages:

(i) If one electrical appliance stops working due to some defect, then all other appliances keep working properly.

(ii) Each electrical appliance has its own switch due to which it can be turned on or turned off independently, without affecting other appliances.

(iii) Each electrical appliance gets the same voltage as that of the power supply line.

So, Both Aand R are true, and R is correct explanation for the assertion.

Regards!

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