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प्रश्न
Instead of metal wires, a jute string can be used to make a circuit.
विकल्प
True
False
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उत्तर
This statement is False.
संबंधित प्रश्न
Explain with the help of a labelled circuit diagram how you will find the resistance of a combination of three resistors, or resistance R1, R2 and R3, joined in parallel. Also mention how you will connect the ammeter and the voltmeter in the circuit when measuring the current in the circuit and the potential difference across one of the three resistors of the combination.
How does the short circuit form? What is its effect?
Explain the following:
Open circuit
If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?
In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
Assertion: In an open circuit, the current passes from one terminal of the electric cell to another.
Reason: Generally, the metal disc of a cell acts as a positive terminal.
What are the types of electric circuits?
Match the following
| 1. | Insulator | a. | Coulomb |
| 2. | Conductor | b. | Electric circuit |
| 3. | Closed path | c. | Copper |
| 4. | Electric charge | d. | Rubber |
Name the device which is used to measure the strength of the electric current in an electric circuit.
