Electric Circuit Study Review
Name:______Date:______
Completion:
1) Name the three parts of a circuit:______
2) Voltage may be thought as electrical:______
3) Current take the path of least:______
4) What is the difference between AC and DC current:
5) Regular batteries produce this type of current:______
6) What is the relation ship between power and energy:
7) Which switch will make a complete circuit when closed?
8) Why will all of the lights in a strand of bulbs go out if one bulb is pulled out? Pictures may help…
9) How could you use a multi meter to see if a power supply is working?
10) How could a multimeter be used to see what bulb is broke when in a series circuit?
Circuits:
1) Draw a circuit diagram with a 3, 2.5, and10 connected in series:
A) Which resistor has the greatest voltage drop:______
B) Which resistor has the least amount of current passing through it:______
2) Draw a circuit diagram with a 3, 2.5, and10, connected in parallel:
A) Which resistor has the greatest voltage drop:______
B) Which resistor has the least amount of current passing through it:______
3) Draw a circuit diagram that has two resistors in series (22 and 18) that are connected to three resistors in parallel (3, 30, and 300).
A) Which resistors have the same current:______
B) Which resistor has the least amount of current:______
C) Which resistors have the most amount of current:______
D) Which resistors have the same voltage drop:______
E) Draw this circuit with an ammeter measuring the current across the 22 resistor and a voltmeter measuring the voltage drop across the 3 resistor.
Measuring resistance:
1 2 3 4
1) Find the resistance if:______
Line 1 – red
Line 2- orange
Line 3 – brown
Line 4- silver
2) Find the resistance if:______
Line 1 – yellow
Line 2- orange
Line 3 – yellow
Line 4- gold
3) Find the resistance if:______
Line 1 – green
Line 2- yellow
Line 3 – blue
Line 4- silver
Calculations:
1) If 20 volts is applied the parallel circuit, find the following:
a) The equivalent resistance: ans: .5ohms
b) The total current passing through the circuit: ans:40amps
c) The current passing through the 6 ohm resistor: ans: 3.33amps
d) The power emitted by the 6 ohm resistor: ans: 66.6 Watts
2) Find the following for the series circuit:
a) Equivalent resistance: ans: 15 ohms
b) The total current: ans: 2amps
c) The voltage drop across the 6 ohm resistor: ans: 12V
3) Find the following for the complex circuit:
a) equivalent resistance: ans: 15.4 Ohms
b) Total current:
c) Current passing through the 2nd 8 ohm resistor:
d) Current through the 100 ohm resiston:
4) Which light will go out when the following leads are touched and why: