Consider a circuit. there are three resistors, r1, r2, and r; and two emf’s, e1 and e2. the directions of the currents are indicated. applying kirchhoff’s rules, what equations
does the loop badcb yield?
1.e1−e2−i1r2−i2r1=0
2. e1 − e2 − i2 r2 − i1 r1 = 0
3. e1 + e2 + i2 r2 − i1 r1 = 0
4.e1−e2−i1r2+i2r1=0
5. e1 + e2 + i2 r2 + i1 r1 = 0
6. e1 + e2 − i2 r2 + i1 r1 = 0
7. e1 − e2 + i2 r2 + i1 r1 = 0
8.e1+e2−i2r2−i1r1=0
9.e1−e2−i2r2+i1r1=0
10.e1−e2+i2r2−i1r1=0

The metric unit of electrical power is the watt volt ampere ohm

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.