Advertisements
Advertisements
प्रश्न
Increasing the current passing through the wire decreases the magnetic field intensity.
पर्याय
Right
Wrong
उत्तर
Increasing the current passing through the wire decreases the magnetic field intensity- Wrong
APPEARS IN
संबंधित प्रश्न
Draw circuit symbols for
an open switch
What is a circuit diagram
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.
Tell the odd one out. Give proper explanation.
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric motor
Who will spend more electrical energy? 500 W TV Set in 30 mins, or 600 W heater in 20 mins?
Find the odd one out and justify it.
Fuse wire, M.C.B., Rubber Gloves, Generator
Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?
Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams.
Explain the following:
Closed circuit
Find the odd one out and give its explanation.
What is the potential difference?
How much is the potential difference between live and neutral wires?
Flow of electricity through a closed circuit is _____.
______ is the device used to close or open an electric circuit.
The switch is used to close or open an electric circuit.
Tabulate the different components of an electric circuit and their respective symbols.
In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.
In which of the following circuits are the bulb connected in series?
Study the three electric circuits below. Each of them has a glass rod (G), a steel rod (S), and a wooden rod (W).
In which of the electric circuits would the bulb not light up.
Which of the following a simple circuit must-have?
The rate of flow of electric charges in a circuit is called ______.
______ is a kind of fish which is able to produce an electric current.
In a circuit, if the key is in open (off) condition, then electricity will not flow.
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) |
Our body is a ________________ of electricity.
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?
What are the essential components of an electric circuit?
In the following arrangement shown in Fig. 12.2, the bulb will not glow if the ends A and B are connected with
Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.
Write a short note on the different electrical circuits.
Overloading of electric circuits can lead to short-circuiting.
How is Joule's law effect useful in electric circuits where fuse is used as a safety device?
Set up the circuit shown in Figure again. Move the key to ‘ON’ position and watch carefully in which direction the compass needle gets deflected. Switch ‘OFF’ the current. Now keeping rest of the circuit intact, reverse the connections at the terminal of the cell. Again switch ‘on’ the current. Note the direction in which the needle gets deflected. Think of an explanation.
