Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Physics
How much resistance must a 9-V device have to keep the current about 1 A? A) None of these.B) 1 ohm.C) 9 ohms.D) 4.5 ohms.E) 10 ohms
1 answer
R =U/I = 9/1 = 9 Ohm.
You can
ask a new question
or
answer this question
.
Related Questions
Thanks for any help :)
Four 20 ohm resistors are connected in parallel and the combination is connected to a 20V emf device. The
The voltage,V, in an electrical unit is related to the current,I, and the resistance,R, by the equation V=IR. The current is
current through a device is 0.30 A, and the resistance in the device is 40 Ù. How many 1.5 V batteries are required to run the
A loop circuit has a resistance of R1 and a current of 2.2 A. The current is reduced to 1.7 A when an additional 3 Ω resistor
Thank you for the help :)
A certain sample carries a current of 4A when the potential difference is 2V and a current of 10A when
Match the property to its unit
Column A 1. Current: Current 2. Resistance: Resistance 3. Voltage: Voltage Column B a.Ampere
A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into
To find the current in a complex circuit, it is necessary to know the
potential difference in each device in the circuit. current
The amount of current flowing into an electrical circuit varies inversely as the resistance in the circuit. When the resistance
A coil of inductance 0.04henry and negligible resistance is connected in parallel with a 10ohms resistor, across a 240volts