Question

In synchrotron, the required high magnetic fields are generated by

• A. solenoid only
• B. electromagnet only
• C. toroid only
• D. solenoid and electromagnet
• E. solenoid and toroid

Hint:

In particle accelerators, magnetic fields are carefully shaped using combinations of coils like solenoids and toroids to control particle motion.

Answer 1

Answer: (E)

Step 1: Understand the working of a synchrotron.
A synchrotron is a type of particle accelerator in which charged particles move in a circular path under the influence of magnetic fields.

Step 2: Identify the role of magnetic fields.
Magnetic fields are required to bend the path of charged particles and keep them moving in a circular orbit.

Step 3: Consider devices used to generate magnetic fields.
Strong and controlled magnetic fields are needed, which are typically produced by current carrying coils such as solenoids and toroidal arrangements.

Step 4: Role of solenoids.
Solenoids produce uniform magnetic fields and are useful in guiding particles.

Step 5: Role of toroids.
Toroids help in confining magnetic fields within a circular path, which is useful for circular accelerators like synchrotrons.

Step 6: Combine both contributions.
Thus, both solenoid and toroid configurations are used to generate the required magnetic fields.

Step 7: Final answer.
\[ \boxed{\text{solenoid and toroid}} \] which matches option \((5)\).