Question
In: Physics
The current through a 83 m long wire connected to a battery is 2.7 A. A...
The current through a 83 m long wire connected to a battery is 2.7 A. A section of the wire is cut off and used to build a circuit. When the remaining wire is connected to the same battery as before the current in the wire is 3.9 A. How much wire is left?
Solutions
genius_generous answered 6 months agoRelated Solutions
A long horizontal wire carries a current of 48 A. A second wire, made of 2.7...
A long horizontal wire carries a current of 48 A. A second wire,
made of 2.7 mm diameter copper wire and parallel to the first, is
kept in suspension magnetically 15 cm below. Determine the
magnitude of the current in the lower wire. Determine the direction
of the current in the lower wire. IS IT IN STABLE EQUILIBRIUM?
Current through a heated metal wire A 39.5 m long copper wire at a temperature of...
Current through a heated metal wire
A 39.5 m long copper wire at a temperature of 22.9 oC
has a radius of 0.275 mm. If a potential difference of 11.8 V is
applied across the length of the wire, determine the current in the
wire.
If the wire is heated to 90.6 oC and the 11.8 V
potential difference is maintained, what is the resulting current
in the wire?
A horizontal wire 12 m long carrying a current of 20 A due north passes through...
A
horizontal wire 12 m long carrying a current of 20 A due north
passes through a 0.75 T horizontal magnetic field that points 60o
north of west. What size magnetic force acts on this wire?
also what is the directiom of the force acting on the magnetic
wire?
1. Three identical resistors are connected in parallel to a single battery. The current through the...
1. Three identical resistors are connected in parallel to a
single battery. The current through the resistors must be...
a. one-third of the current through the battery.
b. the same for the resistors as for the battery.
c. different for each resistor.
d. higher for one resistor and lower for the other two.
2. A 6Ω and a 12Ω resistor are connected in series with a 36
volt battery,. How many Joules per second are dissipated by the 12Ω
resistor....
A capacitor C1 =1F is connected to a 1V battery using a wire with a total...
A capacitor C1 =1F is connected to a 1V battery using a wire
with a total resistance R = 1Ohm
Suppose after the charging is complete the capacitor C1 is
connected to another capacitor C2 = 2 F using a wire with a total
resistance of R =0.3 Ohm. Now the first capacitor discharges while
the second one charges.
2.8 [1pt] How much charge was transferred through the resistor R
during the discharge?
ANSWER
2.9 [1pt] How much energy was...
A capacitor C1 =1F is connected to a 1V battery using a wire with a total...
A capacitor C1 =1F is connected to a 1V battery using a wire
with a total resistance R = 1Ohm
Suppose after the charging is complete the capacitor C1 is
connected to another capacitor C2 = 2 F using a wire with a total
resistance of R =0.3 Ohm. Now the first capacitor discharges while
the second one charges.
2.8 [1pt] How much charge was transferred through the resistor R
during the discharge?
ANSWER
2.9 [1pt] How much energy was...
Initially, a simple circuit has a battery connected in series by conducting copper wire to a...
Initially, a simple circuit has a battery connected in series by
conducting copper wire to a lightbulb. In this configuration, the
lightbulb shines brightly. Vivian thinks the lightbulb is too
bright and wants to reduce its power output. What change should she
make to the circuit?
Please explain answer reasoning
A. Add another identical lightbulb connected in parallel.
B. Replace the conducting copper wire with a smaller diameter
copper wire.
C. Replace the conducting copper wire with a larger diameter...
Four resistors are connected to a battery as shown in the figure. The current in the...
Four resistors are connected to a battery as shown in the
figure. The current in the battery is I, the battery emf is ? =
6.20 V, and the resistor values are R1 = R, R2 = 2R, R3 = 4R, R4 =
3R. Find the voltages across each resistor. R 1, R2 and R3 are in
series. R4 is in parallel.
A single loop of wire of radius 3 cm carries a current of 2.7 A. What...
A single loop of wire of radius 3 cm carries a current of 2.7 A.
What is the magnitude of B on the axis of the loop at the
following positions?
1)
the center of the loop
T
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2)
1 cm from the center
T
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submission are allowed....
In the figure below, the current in the long, straight wire is
In the figure below, the current in the long, straight wire
isI1 = 8.40 Aand the wire lies in the plane of the rectangular loop, which
carries a currentI2 = 10.0 A.The dimensions in the figure arec = 0.100 m,a = 0.150 m,andℓ = 0.720 m.Find the magnitude and direction of the net force exerted on the
loop by the magnetic field created by the wire.magnitude µNdirection---Select--- upward downward to the left to the right into the
page out of the...
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