हिंदी

Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? why?

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प्रश्न

Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? why?

अति संक्षिप्त उत्तर
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उत्तर

Parallel circuits – Because if one electrical appliance stops working due to some defect, then all other appliances in the circuit will keep working properly.

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अध्याय 4: Electricity - Exercise 6

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लखमीर सिंग Physics [English] Class 10
अध्याय 4 Electricity
Exercise 6 | Q 11.1

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Define the unit of current.


What is the conventional direction of the flow of electric current? How does it differ from the direction of flow electrons?


A flash of lighting carries 10 C of charge which flows for 0.01 s. What is the current? If the voltage is 10 MV, what is the energy?


Which effect of current is utilised in an electric light bulb?


Find the potential difference required to pass a current of 0.2 A in a wire of resistance 20Ω


Distinguish between an open and a closed circuit.


Match the pairs.

‘A’ Group  ‘B’ Group 
1. Free electrons a. V/R 
2. Current b. Increases the resistance in the circuit 
3. Resistivity c. Weakly attached 
4. Resistances in series d. VA/LI

What do you mean by electric current?

The metal case of an electric appliance is earthed. Explain the reason.

What do you mean by a solenoid?

Tick(✓) the correct choice in the following:

24 watt, 12 volt head lamp is fully lit by connecting it to a 12 volt
battery. The working resistance of the lamp is


Two resistors P and Q of the same material and length but of different thickness are connected in parallel to a battery. The cross- sectional area of P is twice that of Q. What is the ratio of
(a) The resistance of P to the resistance of Q?
(b) The current in P to the current in Q?


Describe two experiments to illustrate the production of electric current by electromagnetic induction. State the laws which determine the direction and magnitude of the induced current.

Fig . shows the core of a transformer and i ts input and output connections 

State the material used for the core and describe th e structure of the core.
(a) Use the values given in the diagram to calculate the turns ratio for the transformer and connections, labeling all parts of the diagram .
(b) If a current of 2 A is taken from th e output, calculate th e current in the input circuit (Assume the transformer to be ideal ).


Define the term kilowatt - hour and state its value in S.I. unit.


An electric bulb is rated '100 W, 250 V'. How much current will the bulb draw if connected to a 250 V supply?


What is meant by internal resistance of a cell?


True or False – If False give the correct answer

The representation of the electric current is A


State whether true or false. If false, correct the statement.

Current can produce magnetic field.


Match the following:

1. 1 mA a. series
2. 1 pA b. ohmmeter
3. Ammeter  c. 10-6 ampere
4. Electrical resistivity d. 10-3 ampere

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