Parallel connections do not heat up the wires
independence switches can be used
less current will be used
less voltage will be used
Explanation
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Discussions (20)
A is the right answer. And let me prove it
Joules law of electrical heating state that, the heat produce in a conductor is directly proportion to resistance of the conductor, square of the current flowing through it and the time for which it flow [H = I²Rt].
The above account for the reason why power is transmitted at low current and high voltage so as to prevent energy loss due to electrical heating.
For connection in series
i) The same current flow through each resistor hence high current flow through each resistor.
ii) The resultant resistance is very high (R= R1+R2 + R3....)
iii) If one of the component of the circuit fails, the whole circuit fails
i & ii makes series connection produce high eletrical heating. While i, ii and iii makes domestic lighting to be connected in parallel. (in parallel connection, eletrical heating is minimized due to low R and divided current flowing through each resistor AND fault can easily be traced)
For Parallel connection, the following should be noted
i) same voltage is produced in each resistor
ii) different current flows through each resistor expecially when the risistors have difference resistance
iii) resultant resistance in the circuit is less than the least resistance in the combination
iv) one component can be switched off without other components being affected.
Come to think of it, Technically, if option B is right then option D is also right. They are simply pointing to the same thing, this tells us that the examiner is not interested in that.
The examinal is interested in the heating effect of the connection
Consequently, Option A is correct
Be it less current or less voltage, in home connection alternating current AC is what is been used, heating can still happen be it series or parallel but the major reason is that if one part of the connection is affected due to overheating, the other parts of the connections is left unaffected because of parallel connection, and when there is sparking in one side the other side can easily be turned off to prevent sparking also, the answer to this question is strongly B and nothing but B because the major thing is to turn off all the appliances if overheating occurs thats why each room should have their own switch. my school is very correct. if u want any other explanation follow me on Instagram or message me on Facebook. Nwose C Emmanuel, I rest my case.
you all are making a mistake here
the current supplied to these electrical appliances are ac current which can alternate and not dc.the current supplies through an ac circuit is always constant,whether in parallel or series,since it can alternate.The only reason for parallel connection.is to make each appliance independent of the other.
Answer B is correct
Voltages are the same across all components connected in parallel. so I think the answer is option C
MySchool u are very Correct the ans is B.
series connection uses high corrent, Quora was able to explain it better.
Dear my school,
your explanation has nothing to do with your answer. Please do not add to my confusion
thank you
Myschool the answer is A, B is wrong because series connection shares the voltage amongst the appliances, and again it allows the same current to flow through every appliance which may cause wires to heat up for appliances that requires little current, but if they are connected in parallel, an appropraite amount of current goes to each appliances according to the quanriry required. So B is wrong and your explanation is wrong too.
*ULTIMATE PROOF* : The answer is undisputably B.
Proven Reasons:
1. In series, circuit components are connected one after another and the same current flows through it.
2. If one of the components is removed or fused there is a discontinuity in electric current, because of this other components do not work.
3. In a parallel circuit, components are connected directly to the battery.
4. If one of the components is removed or fused the other components are not affected.
5. This is the reason why electrical appliances in the house are connected in parallel so that they can be individually switched on and off.
6. Hence, electrical appliances in the house are connected in parallel and not in series because, in a parallel circuit, components are connected directly to the battery which prevents the other electrical appliances to be not affected if one of them is faulty.
