NEW
Font size
WorksheetsAC and DC current
Total questions: 10
Worksheet time: 5mins
An oscilloscope shows the current flow above what type of current is it showing?
DC
AC
Rectified Current
Non rectified current
DC
AC
rectified current
non rectified current
A transform has 2400 turns on a primary coil and 120 turns on a secondary coil, the input voltage is 240 volts what is the output voltage?
Secondary voltage / Primary voltage = No. of turns in Secondary coil / No. of turns in Primary coil.
6v
9v
12v
24v
A transform has 14400 turns on a primary coil and 360 turns on a secondary coil, the output voltage is 6 volts what is the input voltage?
Secondary voltage / Primary voltage = No. of turns in Secondary coil / No. of turns in Primary coil.
90
120v
180v
240v
The above half wave form is created by an AC going into which circuit?
single diode
Bridge rectifier
Transformer
Voltage regulator
The above half wave form is created by an AC going into which circuit?
single diode
Bridge rectifier
Transformer
Voltage regulator
What electrical component is used to smooth half wave current signals?
Resistor
Diode
Capacitor
Voltage regulator
What form does an inductor store electricity?
Watts
Joules
Voltage
Current
Why is a voltage regulator used in a power supply circuit?
It can maintain a smooth DC voltage when the circuit is under a load.
It creates a voltage loss.
Voltage regulator are often used with a heat sink that looks cool.
Because it is better to regulate voltage.
What circuits where used to create the wave form pictured?
Single diode and capacitor
Transformer and voltage regulator
Bridge rectifier and smoothing capacitors
Diodes, transistors, resistor and inductors.
