Midterm 1
A law relating the distribution of electric charge to the resulting electric field.
What is Gauss's law?
The ability of a component or circuit to collect and store energy in the form of an electrical charge.
What is capacitance?
The attraction or repulsion that arises between electrically charged particles because of their motion.
What is magnetic force?
The tendency of an electrical conductor to oppose a change in the electric current flowing through it.
What is inductance?
The branch of optics that studies interference, diffraction, polarization, and other phenomena
What is wave optics?
Find the distance between a proton and an electron with force of 2.50x10^-16.
Answer: 0.96m
Consists of a source such as a battery with a conducting wire going from one of the source terminals to a set of electric devices and then back to the other terminal.
What is a DC circuit?
The production of an electromotive force across an electrical conductor in a changing magnetic field.
What is induction?
A type of physical interaction that occurs between electrically charged particles.
What is electromagnetism?
An model of light, obtained by choosing a line that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow.
What is ray optics?
A nucleus is divided in half. What is the potential of 3.50x10^-14 m if that portion has 28 protons.
Answer: 1.15x10^6
What is the length of a wire if the electric field is 0.5 v/m, the resistance is 2 ohms and the current is 3 Amp.
Answer: 12 m
What is the current on a 175-turn square loop of 22.0 cm wire with a maximum torque of 425 N*m and 1.35 T field?
Answer: 37.2 A
What will be the area of a solenoid with 115 turns and length of 53 cm and has a self-inductance 4.5x10^-3 H?
Answer: 0.144 m^2
What color we obtain if we have a frecuency of 4.9x10^14 Hz?
Answer: Orange
The energy that is needed to move a charge against an electric field.
What is electric potential energy?
What is the capacitance of an empty parallel-plate capacitor if the plates are 5.5 mm apart and the area is 2.48x10^-3 m^2?
Answer: 4x10^-12 F
What is the current if a solenoid have 1850 turns per meter and the magnetic field within in is 2.5x10^-2 T?
Answer: 10.8 A
What is the reactance of a 3.0 mH inductor and a 7.0x10^-6 F capacitor?
20.7 ohms
what will be slit width if we have a falling light of 480nm and angle of 53 degrees if the second minimum?
Answer: 1.2x10^-6 m
The electric field at the center of the region bewteen the plates is 3.25x10^4 N/C. What is the charge density?
Answer: 2.9 C/m^2
What is the RC time constant of a 3x10^-6 F capacitor, and a 600 ohms resistor, if they are connected in series?.
Answer: 0.0018 s
Find the area of a 75 turn coil if it is placed in a magnetic field of 0.45 T and the magnitude of the induced emf is 2.7 V and the magnetic field is reduced to zero uniformly in 0.20 s.
Answer: 0.016 m^2
What will be the power that a laser beam outputs if the intensity of the laser is 350 W/m^2 and projected into a circular spot of 1.5mm of diameter?
Answer: 0.62x10^-3
What is the critical angle if the index of refraction of ice is 1.309 and is submerged ethanol?
Answer: 74 degrees