1. A loop of wire moves perpendicular to a straight wire carrying a constant cur
ID: 2037685 • Letter: 1
Question
1. A loop of wire moves perpendicular to a straight wire carrying a constant current in the direction shown. The current induced in the loop is: A clockwise B) counter-clockwise D) oscillating zero 2. A periscope is used to observe an object (an upright arrow). The periscope contains two tilted plane mirrors. The image is: A) inverted, real B) upright, real C)inverted, virtualD upright, virtual 3. The figure shows a positive charge at the origin and a target. A uniform magnetic field points into the page. The charge can be projected in the plane of the paper along the positive or negative x or y axis. There are four possible directions (+x,-x, ty,-y) for the initial velocity of the charge. The charge can be made to hit the target for only two of the four directions. Which two? B (into paper) Target 4. A capacitor is fully charged by a 6-V battery and then discharged through a resistor beginning at time 0. When will the voltage across the capacitor be 3 volts? 5. Unpolarized light of intensity So passes through two sheets of polarizing material whose transmission axes make an angle of 60° with each other. What is the intensity of the transmitted beam, ST? 60 b A) So/4 C) 3So/4 So/16 6. Three capacitors (all with capacitance C) are connected in a triangle. What is the equiv?lent capacitance between any two corners of the triangle? A)3C B) C/3 2Explanation / Answer
1.
B
counterclockwise
as the loop moves towards the wire , the magnetic field through the loop in inward direction increase. hence the loop induce current so as to decrease this magnetic field in inward direction by inducing current in it . the loop induce magnetic field in outward direction by inducing current in counterclockwise direction.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.