Math Practice #2 – Electricity
Ms. Lolich/Physical Science
READ: Show formulas and all steps...
Physics, 18.03.2022 14:00 haileysolis5
Math Practice #2 – Electricity
Ms. Lolich/Physical Science
READ: Show formulas and all steps for each problem for full credit. Round your answers to the nearest hundredth. Put the final answer in the box for each problem. Don’t forget to label units!
1. A small electrical pump is labeled with a rating of 3 amps and a resistance of 40 ohms. What voltage was it meant to run at?
V=
I=
R=
2. A nine volt battery is hooked up to a light bulb with a rating of three ohms. How much current passes through the light?
V=
I=
R=
3. A lamp is plugged into the wall outlet, which is providing 110 volts. An ammeter attached to the lamp shows 2 amps flowing through the circuit. How many ohms of resistance is the lamp providing?
V=
I= R=
4. How much current flows through a 20 Ohm resistance when 6 Volts is applied? V=
I=
R=
5. How many volts are required to send 0.5 ampere through a 60 Ohm circuit? V=
I=
R=
6.How much resistance is a lamp if 0.20 amperes flows when a 6.0 Volt battery is applied? V=
I=
R=
7. If the potential difference is 120 volts and the resistance is 40 ohms, what is the current? V=
I=
R=
8. What voltage produces a current of 400 amps with a resistance of 50 ohms? V=
I=
R=
9. What is the resistance of a light bulb if a 120-volt potential difference produces a current of 0.9
amperes?
V=
I= R=
10. A 12-volt battery produces a current of 27 amperes. What is the resistance? V=
I=
R=
Answers: 1
Physics, 22.06.2019 07:30, elijahjacksonrp6z2o7
Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?
Answers: 1
Physics, 22.06.2019 12:00, jazz8224
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Mathematics, 06.07.2019 06:00
History, 06.07.2019 06:00
Chemistry, 06.07.2019 06:00
Mathematics, 06.07.2019 06:00
Mathematics, 06.07.2019 06:00
Biology, 06.07.2019 06:00