Physics 2

A current carrying loop has a radius of 3 cm. The current is 7 A in the counter clockwise direction. Find the magnetic dipole moment, $\vec{\mu}$

Given an RL charging circuit with battery voltage, $\epsilon$ = 30 V, an inductor with L = 30 mH, and a resistor of 50 $\Omega$, how long will it take for the current to reach 75% of its maximum value?

A LC circuit consists of a 10 mH inductor and a 1 microfarad capacitor. If the maximum instantaneous current is 0.1 A, what is the greatest potential difference across the capacitor?

An AC circuit with a 450 Ωresistor, 1.7 H inductor, and a 10 μF capacitor oscillates at a frequency of 50 Hz. If the source voltage is 220 V (rms), find the following:

inductive reactance

capacitive reactance

impedance

rms current of circuit

max voltage across resistor

rms voltage across capacitor

max voltage across inductor

average power dissipated in circuit

power factor

phase angle between current and voltage

resonant frequency of the circuit

You want to form an image on a screen 10 m from a mirror. If the image is 7 times bigger than the object, what type of mirror do you need? What is the radius of curvature?

An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm, h$_I$ = 2 cm. Determine the position of the image, the linear magnification, and h$_0$.

An object is 20 cm in front of a lens of focal length 9.5 cm. A second lens of focal length -30 cm is 15 cm behind the first lens. Find the location of the final image and its magnification.