ETEA MDCAT PAPER 2023

ETEA MDCAT 2023 ( PART 10 )

1. A certain X-ray tube requires a current of 5 mA at a voltage of 60kV. The rate of energy dissipation (in watts) is:

 
 
 
 

2. Ampere second is the unit of:

 
 
 
 

3. The magnitude of the magnetic flux through area A has exactly the same value at angles:

 
 
 
 

4. A hydrogen atom that has lost its electron is moving east in a region where the magnetic field is directed from south to north. It will be deflected:

 
 
 
 

5. When the magnetic force acts on a charge particle, change occurs in:

 
 
 
 

6. A constant magnetic field of 5T is passing through a static conducting loop of area 0.8 m^2, the induced emf is:

 
 
 
 

7. Magnetic flux linked with a conducting loop “A” is increased at the rate of 15 weber/second and in another conducting, loop “B” is decreased at the rate of 15 weber/second, the magnitude of induced emf of:

 
 
 
 

8. For induced emf to be produced in a coil, the magnetic flux linked with a coil must:

 
 
 
 

9. For half wave rectification, the number of diode needed in a circuit is:

 
 
 
 

10. The frequency of a light beam “A” is half of that of light beam “B”. The ratio EA/EB of photons energies is: (Hint where EA & EB are the respective energies of light Beam “A” & “B”)

 
 
 
 

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