Electrical Engineering All Engineering Career
Question 11
A thermistor has ?
A thermistor typically has a negative temperature coefficient. This means that as the temperature increases, the resistance of the thermistor decreases.
Not clear enough?
Question 12
An instrument which detects electric current is known as ?
An instrument which detects electric current is known as a galvanometer.
Not clear enough?
Question 13
For which of the following ampere second could be the unit ?
The unit "ampere second" (A·s) could be used as a unit for charge.
Not clear enough?
Question 14
The hot resistance of the bulb's filament is higher than its cold resistance because the temperature co-efficient of the filament is ?
The hot resistance of a bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is positive.
Not clear enough?
Question 15
ln the case of direct current ?
In the case of direct current (DC), the magnitude and direction of the current remain constant over time.
Not clear enough?
Question 16
Which of the following materials has the least resistivity ?
Among the options provided, copper has the least resistivity.
Not clear enough?
Question 17
Which of the following material has nearly zero temperature co-efficient of resistance ?
Among the options provided, Manganin has nearly zero temperature coefficient of resistance.
Not clear enough?
Question 18
Nichrome wire is an alloy of ?
Nichrome wire is an alloy of nickel and chromium.
Not clear enough?
Question 19
A glass rod when rubbed with silk cloth is charged because ?
A glass rod when rubbed with silk cloth is charged because it gives away electrons.
Not clear enough?
Question 20
The insulation on a current carrying conductor is provided ?
The insulation on a current-carrying conductor is provided to prevent shock and to prevent leakage of current. So, the correct option is both of the above factors.
Not clear enough?
You might like
Which of the following periods marked the beginning of agricultural practices by early human societies?
Under the 1999 constitution of Nigeria, the power to create local governments is vested in the .....
Assume there are 4 processes in the system running or ready to run. If round robin scheduling algorithm with a time quantum of 15 ms is used, then a waiting process will not wait more than ______?
A tap drips at a rate of one drop/ sec. 600 drops make 100ml. The number of litres wasted in 300 days is ?