26. 

A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value?

A. 90 Ohm - 101 ohm
B. 90 Ohm - 110 ohm
C. 98 Ohm - 100.1 ohm
D. 99 Ohm - 102 ohm
E. None of the above

27. 

When a parallel RLC circuit is operating at its resonant frequency:

A. capacitive reactance is greater than the inductive reactance
B. inductive reactance is greater than the capacitive reactance
C. inductive reactance is equal to the capacitive reactance
D. the difference between inductive and capacitive reactance is equal to the resistance
E. None of the above

28. 

For normal operation of the transistor, the collector diode has to be

A. Forward-biased
B. Reverse-biased
C. Nonconducting
D. Operating in the breakdown region
E. None of the above

29. 

In a step-down transformer, which is larger?

A. Primary voltage
B. Secondary voltage
C. Neither
D. Impossible to say
E. None of the above

30. 

What is the barrier potential of a silicon diode at room temperature?

A. 0.7V
B. 0.3V
C. 1 V
D. 2 m V per degree Celsius
E. None of the above