Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ________? A. 50B. 100 C. 150 D. 200
Which of the following statements is correct ___________? A. Air capacitors have a black band to indicate the outside foilB. Electrolytic capacitor must be connected in the correct polarity C. Ceramic capacitors must be connected in the correct polarity D.…
If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because__________________? A. varying voltage produces the charging and dicharging currents B. of high peak value C. charging current can flow D. discharge current can…
A dielectric material must be____________? A. resistorB. insulator C. good conductor D. semi conductor
The capacitance of a capacitor is not affected by____________? A. distance between plates B. area of platesC. thickness of plates D. all of the above
The units of capacitance are____________? A. volts/coulombB. coulombs/volt C. ohms D. henry/Wb
If three 10 uF capacitors are connected in parallel, the net cararitance is___________? A. 20 uFB. 30 uE C. 40 uF D. 50 uF
An electrolytic capacitor can be used for_____________? A. D.C. only B. AC. only C. both D.C. as well as A.C.
Which of the following is not a vector ___________? A. Linear momentumB. Angular momentum C. Electric field D. Electric potential
The lines of force due to charged particles are_________? A. always straightB. always curved C. sometimes curved D. none of the above