The materil used to coat inside the face of CRT is ______________?

Related Mcqs:

1. If the negative potential on the control grid of CRT is increased, the intensity of spot _____________?

   A. Is increased
   B. Is decreased
   C. Remains the same
   D. None of the above

2. The input resistance of a VTVM is about ______________?

   A. 1000 O
   B. 10 kO
   C. 20 kO
   D. 10 MO

3. A galvanometer of resistance G is shunted by a very small resistance S. The resistance of the resulting ammeter is ______________?

   A. GS/(G+S)
   B. G+S
   C. G-S
   D. None of the above

4. A VTVM is never used to measure ______________?

   A. Voltage
   B. Current
   C. Resistance
   D. None of the above

5. Two multimeters A and B have sensitivities of 10 kO/V and 30 kO/V respectively. Then ______________?

   A. Multimeter A is more sensitive
   B. Multimeter B is more sensitive
   C. Both are equally sensitive
   D. None of the above

6. An ideal ammeter has ______________ resistance?

   A. Low
   B. Infinite
   C. Zero
   D. High

7. The resistance of an ideal voltmeter is ______________?

   A. Low
   B. Infinite
   C. Zero
   D. High

8. The sensitivity of a multimeter is given in _______________?

   A. O
   B. Amperes
   C. kO/V
   D. none of the above

9. For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO?

   A. Sinusoidal
   B. Rectangular
   C. Sawtooth
   D. None of the above

10. A CRO is used to measure _________________?

    A. Voltage
    B. Frequency
    C. Phase
    D. All of above