Advertisements
Advertisements
प्रश्न
Increasing the current passing through the wire decreases the magnetic field intensity.
पर्याय
Right
Wrong
Advertisements
उत्तर
Increasing the current passing through the wire decreases the magnetic field intensity- Wrong
APPEARS IN
संबंधित प्रश्न
What do the following symbols mean in circuit diagrams?

Draw circuit symbols for variable resistance
Draw circuit symbols for
an open switch
What is a circuit diagram
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?
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
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?
What is open 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?
What is the use of earthing wire?
In the given circuit diagram, which of the given switch(s) should be closed. So that only bulb A glows.

Draw the circuit diagram for the series connection.
Tabulate the different components of an electric circuit and their respective symbols.
In which among the following circuits does the bulb glow?
Study the electric circuit below. Which of the following switches should be closed so that only two bulbs will light up

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.

_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.
What is electric circuit?
Explain about domestic electric circuits. (circuit diagram not required)
Instead of metal wires, a jute string can be used to make a circuit.
In a circuit, if the key is in open (off) condition, then electricity will not flow.
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) |
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.

Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Ω in series with a combination of two resistors (4 Ω each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Ω resistor be the same as that across the parallel combination of 4 Ω resistors? Give reason.
In an electric circuit a fuse is a ______ ______ to prevent possible fire.

In the above circuit, if the current reading in the ammeter A is 2A, what would be the value of R1?
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 ______.
Will the bulb glow in the circuit shown in the following figure? Explain.

Paheli connected two bulbs to a cell as shown in the following figure.

She found that filament of bulb B is broken. Will the bulb A glow in this circuit? Give reason.
Write a short note on the different electrical circuits.
Name the device which is used to measure the strength of the electric current in an electric circuit.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.



