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 02:30
Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.
Answers: 1
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
Answers: 2
Mathematics, 05.05.2020 15:30
English, 05.05.2020 15:30
Mathematics, 05.05.2020 15:30
Social Studies, 05.05.2020 15:30
Mathematics, 05.05.2020 15:30
Physics, 05.05.2020 15:30
Mathematics, 05.05.2020 15:30
Mathematics, 05.05.2020 15:30
History, 05.05.2020 15:30
Mathematics, 05.05.2020 15:30
Health, 05.05.2020 15:30
Social Studies, 05.05.2020 15:30