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☆☆☆☆☆Cards in this guide (8)
A string of 15 Christmas tree lights is connected in series to a 90 volt power source What is the value of the resistance of each light if the current flowing through the circuit is 2 amps
3
3 ohms
What is the drawing of an electrical circuit called
"schematic diagram" or "schematic drawing"
A ray of light strikes a flat surface of water The angle that the incoming light ray makes with the normal is called the angle of
incident
A string of 20 Christmas tree lights are connected in series to a 20 volt power source The bulbs each have a resistance of .5 ohm How much current is flowing through the circuit
2 amps. If it is D.C.
Five resistors are connected together in series One resistor is 2 ohms one is 3 ohms one is 4 ohms one is 5 ohms and the fifth is 6 ohms What is the total resistance
Purely additive. 2+3+4+5+6=20.
A 5 ohm resistor a 20 ohm resistor and a 25 ohm resistor are all connected in series to a 100 volt power source What is the current running through the circuit
2 amps. 100 volts divided by 50 ohms = 2 amps. E/R=I.
What is the speed of a sound wave that has a wavelenght of 102 meters and a frequency of 250hz
speed = wavelength * frequency wavelength = 102 meters
frequency = 250 Hz = 250 cycles/second
102 * 250 = 25500 meters/second
What is the total current flowing through a 45 ohm resistor 1.4 amps and 20 ohm resistor 1.8 amps
Just add the amps (3.2 amps).
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