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Electric Circuits
A 24v supply is used to connet 2 lamps in series. What difference will there be, if any, in current and resistances of the lamp?
Electric Circuits
Magnitude of electric field intensity at a point where a+1 x 10-12 coulomb charge experiences a 1.0 N force
Electric Circuits
If an AC generator with Vt=150sin(100πt) is connected to a series RLC circuit, where R=40 Ω, L=185 mH, and C=65 μC, as shown the Figure below, Find: the capacitive reactance, XL, the inductive reactance, Xc, the impedance, Z and the maximum current amplitude, Io
Electric Circuits
Maybe we’ll make a Dunk Tank for the Spring Spectacular this year.2 Pictured is
a schematic for a Dunk Tank. A rectangular loop of wire consisting of 200 coils is
immersed in a strong magnetic field of 1.85 T. The length of the horizontal section of
the loop that is within the field is 0.550 m, and the orientation is fixed so that the loop
may only move up or down (i.e., to provide the tension in the cable supporting Dr.
Miller). Current is supplied to the coil and the resulting force holds up Dr. Miller, who
has a mass of 75.5 kg including the light seat. What current is required to balance the
system? What direction does the current have to flow in the diagram?
a schematic for a Dunk Tank. A rectangular loop of wire consisting of 200 coils is
immersed in a strong magnetic field of 1.85 T. The length of the horizontal section of
the loop that is within the field is 0.550 m, and the orientation is fixed so that the loop
may only move up or down (i.e., to provide the tension in the cable supporting Dr.
Miller). Current is supplied to the coil and the resulting force holds up Dr. Miller, who
has a mass of 75.5 kg including the light seat. What current is required to balance the
system? What direction does the current have to flow in the diagram?
Electric Circuits
An electric power line carries a strong current of 1.95 × 103 A in the lovely city of
Anchorage, Alaska. The line is parallel to the ground and heading to the North (also
the direction of the electric current), but since the Earth is a sphere it means that
the Earth’s magnetic field of 55 µT is oriented at an angle of 61◦
relative to the wire
(see figure). Determine the force on a 20.0 m segment of the power line, and use the
right-hand rule to determine its direction.
Anchorage, Alaska. The line is parallel to the ground and heading to the North (also
the direction of the electric current), but since the Earth is a sphere it means that
the Earth’s magnetic field of 55 µT is oriented at an angle of 61◦
relative to the wire
(see figure). Determine the force on a 20.0 m segment of the power line, and use the
right-hand rule to determine its direction.
Electric Circuits
Arthur Jeffries1 finds that a proton moving with a velocity of 1.45 × 106 m/s in a
particular uniform magnetic field experiences a force of 5.11×10−17 N. If the direction
of the velocity vector is at a right angle to the direction of the magnetic field, calculate
the magnitude of the magnetic field and express your answer in units of gauss (recall
that 104 G = 1 T).
particular uniform magnetic field experiences a force of 5.11×10−17 N. If the direction
of the velocity vector is at a right angle to the direction of the magnetic field, calculate
the magnitude of the magnetic field and express your answer in units of gauss (recall
that 104 G = 1 T).
Electric Circuits
An electric kettle and an electric iron operated for 1 hour and 20 minutes respectively. The main supply of electricity has a voltage of 240 V. During the operation, a current of 5 A flows through the kettle and a current of 1.5 A flows through the iron. If the cost of electrical energy is $0.50 for 1 kWh, what is the cost of operating these two items?
Electric Circuits
Two spherical conductors each of capacity 'C' are charged to potential 'V' and (-V). Then they are connected by a metallic wire. What is the loss of energy?
Electric Circuits
A 100-volt electromotive force is applied to an R-C series circuit in which the resistance R is 200 ohms and the capacitance C is 10-4 farad. find the charge q(t) on the capacitor if q(0) = 0.
Electric Circuits
A current of 15 A flows through a circuit for 200s what charge does it have
