The long, straight wire shown in Fig. we saw earlier carries constant current $l$. A metal bar with length $L$ is moving at constant velocity $\overrightarrow{\boldsymbol{v}}$, as shown in the figure. Point $a$ is a distance $d$ from the wire. If the bar is replaced by a rectangular wire loop of resistance $R$, what is the magnitude of the current induced in the loop?

A metal loop moves at constant velocity toward a long wire carrying a steady current $I$. The current induced in the loop is directed
A. clockwise.
B. counterclockwise.
C. zero.

A rectangular loop of wire carries a 2.0 -A current and lies in a plane which also contains a very long straight wire carrying a 10.0-A current as shown in the given figure. Determine the net torque on the loop due to the straight wire.

The long. straight wire $A B$ shown in Fig. we saw earlier carries a current of $14.0 \mathrm{~A}$. The rectangular loop whose long edges are parallel to the wire carries a current of $5.00 \mathrm{~A}$. Find the magnitude and direction of the net force exerted on the loop by the magnetic field of the wire.

The slender rod of mass m and length l rotates about the y-axis as the element of a right-circular cone. If the angular velocity about the y-axis is $\omega$, determine the expression for the angular momentum of the rod with respect to the x-y-z axes for the particular position.

A slender rod, $0.240 \mathrm{~m}$ long, rotates with an angular speed of $8.80 \mathrm{rad} / \mathrm{s}$ about an axis through one end and perpendicular to the rod. The plane of rotation of the rod is perpendicular to a uniform magnetic field with a magnitude of $0.650 \mathrm{~T}$. What is the potential difference between its ends?

Make a stem-and-leaf plot for each set of data. Then find the median, the mode, and the range. 47, 41, 60, 75, 85, 53, 57, 76, 79, 81, 84, 86

A dc amplifier having a single-pole response with pole frequency 10 Hz and unity-gain frequency of 1 MHz is operated in a loop whose frequency-independent feedback factor is 0.1. Find the low-frequency gain, the 3-dB frequency, and the unity-gain frequency of the closed-loop amplifier. By what factor does the pole shift?

The primary function of the root is to
a. make sure that the plant will grow.
b. anchor the plant and supply water
c. ensure that the plant can be propagated.
d. hold up the stem of the plant and provide nutrients. propagation material.

Name each tropism and state whether it is positive or negative. a. Stem grows up. b. Roots grow down. c. Plant grows toward light. d. A vine grows around a pole.

Write the appropriate ending to complete each verb stem. Follow the model.

Modelo (comer) Nosotros commimos_____en la cafetería.

(aprender) - Carlos y yo aprend______ el inglés.

Complete the following sentence by circling the correct form of the verb in parentheses. Then, draw a line beneath the vowel that represents the stem change.

El campeón (pidió-pedí) un millón de dólares.

A loop of wire 5.00 cm in diameter is carrying a current of 2.00 A. What is the energy density of the magnetic field at its center?

A circular loop of wire with area $A$ lies in the $x y$-plane. As viewed along the $z$-axis looking in the $-z$-direction toward the origin, a current $I$ is circulating clockwise around the loop. The torque produced by an external magnetic field $\overrightarrow{\boldsymbol{B}}$ is given by $\vec{\tau}=D(4 \hat{\imath}-3 \hat{\jmath})$, where $D$ is a positive constant, and for this orientation of the loop the magnetic potential energy $U=-\overrightarrow{\boldsymbol{\mu}} \cdot \overrightarrow{\boldsymbol{B}}$ is negative. The magnitude of the magnetic field is $B_0=13 \mathrm{D} / \mathrm{A}$. Determine the components $B_x, B_y$, and $B_z$ of $\overrightarrow{\boldsymbol{B}}$.