When an alpha-particle projected towards west is deflected towards north by a magnetic field the direction of magnetic field is?

Since the positively charged particle is projected towards west, so the direction of current is towards west. Now the deflection is towards north, so the force is towards north.

Why are alpha and beta rays deflected in opposite directions in a magnetic field?

5. Alpha and beta rays are deflected in opposite directions in a magnetic field because they are oppositely charged—alpha are positive and beta negative. Gamma rays have no electric charge and are therefore undeflected.

What is Fleming’s left hand rule for magnetic field?

Fleming’s left – hand rule states that if we stretch the thumb, middle finger and the index finger of the left hand in such a way that they make an angle of 90 degrees(Perpendicular to each other) and the conductor placed in the magnetic field experiences Magnetic force.

How are alpha particles deflected?

Alpha particles are positively charged, beta particles are negatively charged, and gamma radiation is electrically neutral . This means that alpha and beta radiation can be deflected by electric fields , but gamma radiation cannot. And positive alpha particles will be attracted towards a negatively charged plate.

What is the formula for alpha decay?

In alpha decay process, the parent isotope emits two protons and two neutrons (Z = 2 and A = 4), which is called an alpha particle (helium-4 nucleus) (Maher, 2004). The identity of the daughter isotope can be determined by Fig. 1.

How can you find the direction of a magnetic field at a given point in the magnetic line of force?

The direction of a magnetic field at a point is determined by placing a small compass needle. The N – pole of compass indicates the direction of magnetic field at that point.

Which of the following types of radiation is deflected in a magnetic field?

The beta radiation is deflected by the magnetic field. This suggests that it is made of moving charges.

How do you remember Fleming’s right hand rule?

Simply just remember the bold letter which creates “FBI”, standing for Force (or Conductor motion), B the symbol for the magnetic field, and I the symbol for current. The subsequent letters correspond to subsequent fingers, counting from the top. Key Points: Fleming right-hand rule gives the direction of the current.

How do you remember Fleming’s left hand rule?

Easy to remember Fleming Left-hand rule: Fleming left-hand rule can be easily remembered by the word left. In a word “left” contains a letter “f” f is the starting letter of force. The force can be delivered by a motor. By that, you can remember the Fleming left-hand rule.

Why do some alpha particles deflected?

Some of the alpha particles were deflected slightly, meaning that there must be a small part of the gold atom that is positively charged. This is because the alpha particles are positive and like charges repel each other, so the positive part of the nucleus deflected the alpha particles.

How do you determine the direction of deflection of alpha particles?

Alpha particles are deflected by a magnetic field confirming that they must carry a charge. The direction of deflection which can be determined by Fleming’s left hand rule demonstrates that they must be positively charged. Remember for Fleming’s left hand rule the second finger is aligned with the direction…

What is Fleming’s left hand rule for beta particles?

Remember for Fleming’s left hand rule the second finger is aligned with the direction of the current which is from positive to negative. Beta particles are deflected by a magnetic field in an opposite direction to alpha particles confirming they must hold a charge opposite to alpha particles.

How do you use Fleming’s left hand rule?

Fleming’s left hand rule tells you the direction of the force if you know the directions of the electric current and the magnetic field. Graphic explaining how to use Fleming’s left-hand rule. Similarly if you know the direction of the force and the direction of the magnetic field then you can infer the direction of the electric current.

How do alpha particles travel through a magnetic field?

Alpha particles in a magnetic field When a charged particle cuts through a magnetic field it experiences a force referred to as the motor effect. Alpha particles are deflected by a magnetic field confirming that they must carry a charge.