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
.
Similar Questions
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
Top answer:
I assume 40 Ù means 40 ohms. V = I*R = 0.30*40 = 12 volts That would require 12/1.5 = 8 1.5 volt
Read more.
An electrical device with a resistance of 323.0 k(omega sign) will allow a current of 21.0 A to flow through it if a voltage
Top answer:
To find the voltage drop across an electrical device, you can use Ohm's law, which states that
Read more.
To find the current in a complex circuit, it is necessary to know the
potential difference in each device in the circuit. current
Top answer:
If you know the current in each device and the pathways, you know the total. If they are in
Read more.
To find the current in a complex circuit, it is necessary to know the
potential difference in each device in the circuit. current
Top answer:
To find the current in a complex circuit, I'll need to know the supply voltage and the equivalent
Read more.
To find the current in a complex circuit, it is necessary to know the
potential difference in each device in the circuit. current
Top answer:
I don't like any of those choices, or the question. Where do you want to know the current? What
Read more.
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the
Top answer:
We can use the inverse variation formula: current x resistance = constant Let's call the constant k:
Read more.
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the
Top answer:
the resistance is 1
Read more.
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the
Top answer:
See previous post.
Read more.
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the
Top answer:
V = I*R = 2 * 115 = 230 Volts = Applied voltage. R = V/I = 230/5 = 46 Ohms.
Read more.
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the
Top answer:
varies inversely means there is a constant k such that ir = k we are told that i=2 when r=115: 2*115
Read more.
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
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
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
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
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
The resistance of a given electric device is 46 ohms at 25°C. If the
temperature coefficient of resistance of the material is
The wattage rating of an appliance W varies jointly as the square of the current I and the resistance R. If the wattage is 1.5