Electronic Principles
At room temperature an intrinsic semiconductor has

None of these
many holes
No holes
many free electrons
a few free electrons and holes

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

None of these
The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage is equal to the sum of the individual voltages in a series circuit
The total voltage of a series circuit is equal to the total current divided by the total resistance
The total voltage in a series circuit is always less than the value of the smallest voltage

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is the primary difference between primary and secondary cell batteries?

Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
None of these
Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electronic Principles