290 Aptitude Test Problems in Physics
The amplitude of charge oscillations after the
breakdown can be determined from the condition
W = q11(2C), whence
yo =
CU
It 2— cos 2 coot.3.62. It is sufficient to shunt the superconducting
coil through a resistor with a low resistance -which
can withstand a high temperature. Then the current
in the working state will pass through the coil
irrespective of the small value of the resistance
of the resistor. If, however, a part of the winding
loses its superconducting properties, i.e. if it has
a high resistance, the current will pass through
the shunt resistance. In this case, heat will be
liberated in the resistor.