ELECTROTHERAPY - 1

In a Condensor, the spacing materiel should have

• High Dielectric Constant

• Low Dielectric Constant

• Both A & B

• None of the above

In a Step - Up Transformer -

• The number of turns of wire in primary coil > secondary coil

• Equal no. of turns in primary and secondary coil

• The number of turns of wire in secondary coil > primary coil

• None of the above

A current that produces greater muscle hypertrophy with gain in strength is:

• DC

• Faraday's current

• Russian current

• Didynamic current

The types of muscle fibers mostly activated by electrical stimulation are :

• TYPE - I FIBERS

• TYPE - IIa FIBERS

• TYPE - II b FIBERS

• NONE OF THE ABOVE

Lenz's Law deals with:

• Inductance of the conductor

• Rate of change of magnetic field

• direction of current flow

• direction of the induced EMF

Joule's law expresses the relation between

• current , voltage and time

• current , resistance and time

• current, power and resistance

• current , EMF and time

The earth pin of the plug socket is larger as :

• It allows one way entry of the socket

• It allows the earth pin to enter first & come out last

• Both A & B

• None of the above

Rectification of a circuit is achieved using

• Diode valve

• Rheostat

• Transformer

• Capacitor

The amount of heat produced during treatment with an electric current increases if :

• skin impedance is high

• the treatment time is of a short interval

• the total current is not high

• none

which of the following is a true sentence :

• after a severe shock there is paralysis of the respiratory muscles

• hot drinks should be avoided following a shock

• after a severe shock there is rise in BP

• Shocks are more severe with didynamic currents