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☆☆☆☆☆Cards in this guide (15)
What unit is used to measure resistance
ohm
The relationship between the angle of incidence and the angle of refraction is known as law
Snell law.
A ray of light strikes a flat surface of water Part of the light will be reflected and part of the ray will enter the water The angle that is made by the part of the ray that enters the water with
refraction
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"
What is the frequency of a sound wave moving in air at room temperature if the wavelength is 0.686 meters
-===Answered by Cody p.===-
500 Hz.
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
The apparent change in the frequency of a sound emitted by a moving object as it passes a stationary observer is called the what effect
Doppler effect.
Three 15 ohm resistors are connected in parallel to a 30 volt battery What is the equivalent resistance through the circuit
5 ohms...
What is a group of planets that orbit a star
A solar system.
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.
Light wave is composed of two components an electrical component and a component
magnetic
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 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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