Advertisements
Advertisements
प्रश्न
Find the odd one out and give its explanation.
पर्याय
Temperature
Conduction
Convection
Radiation
Advertisements
उत्तर
Temperature
Explanation-
Temperature is a degree of hotness while conduction, convection, and radiation are modes of heat transfer.
APPEARS IN
संबंधित प्रश्न
What do the following symbols mean in circuit diagrams?
Draw circuit symbols for
fixed resistance
Draw the labelled diagram of an electric circuit comprising of a cell, a resistance, an ammeter, a voltmeter and a closed switch (or closed plug key). Which of the two has a large resistance : an ammeter or a voltmeter?
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric motor
How does the short circuit form?
Who will spend more electrical energy? 500 W TV Set in 30 mins, or 600 W heater in 20 mins?
A battery is to be formed by joining 3 dry cells with connecting wires. Show how will you connect the wires by drawing a diagram.
Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams.
Match the column ‘A’ with column ‘B’.
|
Column ‘A’
|
Column ‘B’ |
|
(1) Eka - boron
|
(a) Germanium
|
|
(2) Eka - Aluminium
|
(b) Scandium
|
|
(3) Eka - Silicon
|
(c) Gallium |
Answer the following question.
With the help of a suitable circuit diagram prove that the reciprocal of the equivalent resistance of a group of resistances joined in parallel is equal to the sum of the reciprocals of the individual resistances.
What do you understand by the closed electric circuit
What do you understand by the open electric circuit?
Name the instrument used to control current in an electric circuit.
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.
______ is the device used to close or open an electric circuit.
The switch is used to close or open an electric circuit.
Draw the circuit diagram for the series connection.
Rahul wants to make an electric circuit. He has a bulb, two wires, a safety pin, and a piece of copper. He does not have any electric cell or battery. Suddenly he gets some idea. He uses lemon instead of a battery and makes a circuit. Will the bulb glow?
In which of the following circuits are the bulb connected in series?
Draw the circuit diagram for the following series connection
_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.
Instead of metal wires, a jute string can be used to make a circuit.
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 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?
A child has drawn the electric circuit to study Ohm’s law as shown in Figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.
In an electric circuit, the current starts from ______.
In the above circuit, if the current reading in the ammeter A is 2A, what would be the value of R1?
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?
Paheli is running short of connecting wires. To complete an electric circuit, she may use a ______.
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.
