A Positively-charged Particle (Alpha-particle) Projected Towards West is Deflected Towards North by a Magnetic Field. the Direction of Magnetic Field is - Science

Advertisements
Advertisements
MCQ

A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is

Options

  • towards south

  • towards east

  • downward

  • upward

Advertisements

Solution

upward

  Is there an error in this question or solution?
Chapter 13: Magnetic Effects of Electric Current - Intext Questions [Page 232]

APPEARS IN

NCERT Science Class 10
Chapter 13 Magnetic Effects of Electric Current
Intext Questions | Q 3 | Page 232

RELATED QUESTIONS

The magnetic field inside a long straight solenoid-carrying current


On reversing the direction of the current in a wire, the magnetic field produced by it gets ____________.


State Fleming's left hand rule.


Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.


Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.


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 

 


A current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should passed in the conductor:

(a) from top towards bottom
(b) from left towards right
(c) from bottom towards top
(d) from right towards left 


 A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.


A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in Figure below: 

The force on the wire due to the magnet is directed: 

fron N to S
 from S to N
 vertically downwards
 vertically upwards


Which way does the wire in the diagram below tend to move? 

 


Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. What would happen if: 

a current is passed through coil B by plugging the key?  

Explain your answer mentioning the name of the phenomenon involved.

 


Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. What would happen if: 

the current is stopped by removing the plug from the key? 

Explain your answer mentioning the name of the phenomenon involved. 


Name the following diagram and explain the concept behind them.


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


State two ways to increase the speed of rotation of a D.C. motor.


When do you use (i) Fleming's left hand rule, and (ii) Fleming's right hand rule?

State Fleming's left handle rule.


Differentiate between Conductors and insulators.


State whether a magnetic field is associated or not around a static charge.


State whether a magnetic field is associated or not around a moving charge.


State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be maximum.


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.


What do you know about Michael Faraday?


Assertion (A): A magnetic field exerts a force on a moving charge in the same direction as the direction of the field itself.
Reason (R): The direction of force is given by Fleming’s left-hand rule.


A current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?


Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':


An alpha particle enters a uniform magnetic field as shown. The direction of force experienced by the alpha particle is ______.


A copper conductor is placed over two stretched copper wires whose ends ate connected to a D.C. supply as shown in the diagram.

  1. What should be the magnetic poles at the points A and B lying on either side of the conductor to experience the force in the upward direction?
  2. Name the law used to find these polarities.


Share
Notifications



      Forgot password?
Use app×