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प्रश्न
State the form of magnetic field lines around a straight current-carrying conductor.
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उत्तर
Magnetic field lines around a straight current-carrying conductor are in the form of concentric circles with centre at the axis of the conductor.
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संबंधित प्रश्न
State whether the following statement is true or false
The field at the centre of a long circular coil carrying current will be parallel straight lines.
Observe the following figure:
If the current in the coil A is changed, will some current be induced in the coil B? Explain.
Draw the magnetic lines of force due to a circular wire carrying current.
What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?
The diagram given below represents magnetic field caused by a current-carrying conductor which is:
(a) a long straight wire
(b) a circular coil
(c) a solenoid
(d) a short straight wire
The magnetic field lines in the middle of the current-carrying solenoid are?
(a) circles
(b) spirals
(c) parallel to the axis of the tube
(d) perpendicular to the axis of the tube
For Fleming's left-hand rule, write down the three things that are 90° to each other, and next to each one write down the finger or thumb that represents it.
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
A horizontal wire carries a current as shown in Figure below between magnetic poles N and S:
Is the direction of the force on the wire due to the magnet:
(a) in the direction the current
(b) vertically downwards
(c) opposite to the current direction
(d) vertically upwards
Which way does the wire in the diagram below tend to move?
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?
i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine
Name and state the rule of determine the direction of force experienced by a current carrying straight conductor placed in a uniform magnetic field which is perpendicular to it.
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
Write Fleming’s left hand rule.
A magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act ____________.
What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?
Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':
Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?
Two LED bulbs of 10W and 5W are connected in series. If the current flowing through 5W bulb is 0.005A, the current flowing through 10W bulb is ______.
