In our houses all electrical devices operate on 220 V. It implies that

they are connected in parallel

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they are connected in series

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they all have currents of equal values

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they all have the same resistance

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Solution

The correct option is A they are connected in parallel
Voltage across the appliance connected in parallel is the same. As the voltage across all the appliances is same and equals to $220$ V, this means that all the appliance must be connected in parallel.

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Similar questions

Q. Question 2
An electric lamp of

100 Ω

, a toaster of resistance

50 Ω

, and a water filter of resistance

500 Ω

are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

The same current flows through all the resistances if they are connected in __.

At a given time a house is supplied with 100 A at 220 V. How many 75 W, 220 V light bulbs could be switched on in the house at the same time (if they are all connected in parallel)?

Q. Two electric resistors have equal values of resistance

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In our houses all electrical devices operate on 220 V. It implies that

The correct option is A they are connected in parallelVoltage across the appliance connected in parallel is the same. As the voltage across all the appliances is same and equals to 220 V, this means that all the appliance must be connected in parallel.

The correct option is A they are connected in parallel
Voltage across the appliance connected in parallel is the same. As the voltage across all the appliances is same and equals to $220$ V, this means that all the appliance must be connected in parallel.