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प्रश्न
What is electric circuit?
उत्तर
The path through which electrons flow from one terminal to another terminal of the source is called an electric circuit.
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संबंधित प्रश्न
Redraw the circuit of question 1, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the 12 Ω resistors. What would be the readings in the ammeter and the voltmeter?
What do the following symbols mean in circuit diagrams?
Resistances R1, R2, R3 and R4 are connected as shown in the figure. S1 and S2 are two keys. Discuss the current flowing in the circuit in the following cases.
- Both S1 and S2 are closed.
- Both S1 and S2 are open.
- S1 is closed but S2 is open.
The accompanying figure shows some electrical appliances connected in a circuit in a house. Answer the following questions.
- By which method are the appliances connected?
- What must be the potential difference across individual appliances?
- Will the current passing through each appliance be the same? Justify your answer.
- Why are the domestic appliances connected in this way?
- If the T.V. stops working, will the other appliances also stop working? Explain your answer.
Draw a neat diagram showing a open electric circuit.
The switch is used to close or open an electric circuit.
_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.
______ is a kind of fish which is able to produce an electric current.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
