QUESTION 1:DIFFERENTIATE BETWEEN THE ELECTROSTAIC DEFLECTION NAD ELECTROMAGNETIC DEFLECTION IN A CATHODE RAY TUBE? ANSWER:-1. ELECTROSTATIC DEFLECTION? IT IS THE METHOD OF MOVING THE CHARGED PARTICLE BY APPLING ELECTRIC FIELD BETWEEN THE DEFLECTION PLATES IN CRT.? THE AMOUNT OF CHARGE IS GIVEN TO THE PLATES CONTROLS IN VARIATION OF DEFLECTION. 2.
ELECTROMAGNETIC DEFLECTION? IT IS THE METHOD OF MOVING THE CHARGED OARTICLE BY APPLYING MAGNETIC FIELD BETWEEN THE DEFLECTION PLATES IN CRT.? THE AMOUNT OF POLARITY OR STRENGHT OF MAGNETIC FIELD CONTROLS THE VARIATION IN DEFLECTION. QUES-2: EXPLAIN AUTO-ZERO MECHANISM IN DIGITAL MULTIMETER?ANSWER:IN MEASUREMENT OF TIME IN DIGITAL MULTIMETER THEN THERE IS TWO CONDITION APPEAR WHICH IS AS FOLLOWS:-• AUTOZERO ONWHEN THE INSTRUMENT DISSCONNECTED FROM CIRCUIT AND READ ZERO.THEN IT IS SUBTRACTED ZERO READING TO PREVIOUS READING . THIS CAUSE OFF SETS VOLTAGES IN THE INSTRUMENT.• AUTOZERO 0FF WHEN THE INSTRUMENT USES THE LAST ZERO READING AND SUBTRACTED TO PREVIOUS READING OF EVERY MEASUREMENT THEN IT CONATAIN A NEW ZERO READING.
