Advertisements
Advertisements
प्रश्न
Tell the odd one out. Give proper explanation.
पर्याय
Fuse wire
Bad conductor
Rubber gloves
Generator
Advertisements
उत्तर
Generator
Explanation:
Others restrict flow of current while generator is used to produce current.
संबंधित प्रश्न
What do the following symbols mean in circuit diagrams?
Draw circuit symbols for
a cell
Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch the third bulb has its own switch.
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric motor
Observe the following figure which bulb get fuse?
Write the condition required for a circuit to be a closed circuit.
Name the instrument used to control current in an electric circuit.
The unit of electrical power is _______.
What is the potential difference?
How much is the potential difference between live and neutral wires?
Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.
______ is the device used to close or open an electric circuit.
The switch is used to close or open an electric circuit.
In which of the following circuits are the bulb connected in series?
Study the electric circuit below. Which of the following switches should be closed so that only two bulbs will light up
Which of the following a simple circuit must-have?
What is electric circuit?
State whether true or false. If false, correct the statement.
Ammeter is connected in parallel in any electric circuit.
The wiring in a house consists of ______ circuits.
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?
In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be
 |
 |
 |
| (i) | (ii) | (iii) |
In an electrical circuit three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?
When an electric current flows through a copper wire AB as shown in the following figure, the wire
Three bulbs A, B, C are connected in a circuit as shown in the following figure. When the switch is ‘ON’
Name the device used these days in place of electric fuses in electrical circuits.
Observe the circuit given:
1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?
2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?
The ______ is a species of fish that can give electric shocks of up to six hundred fifty watts of electricity.
Match the following
| 1. | Insulator | a. | Coulomb |
| 2. | Conductor | b. | Electric circuit |
| 3. | Closed path | c. | Copper |
| 4. | Electric charge | d. | Rubber |
What are the essential components of an electric circuit?
In which of the following circuits A, B and C given in the following figure, the cell will be used up very rapidly?
Will the bulb glow in the circuit shown in the following figure? Explain.
Overloading of electric circuits can lead to short-circuiting.
An electric motor rated 1100 W is connected to 220 V mains. Find:
- The current drawn from the mains,
- Electric energy consumed if the motor is used for 5 hours daily for 6 days.
- Total cost of energy consumed if the rate of one unit is 5.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
