Two are true, one is not

Exercise and reference answers

Questions

1. False statement

   emf is measured in newtons

   Statements

   1. emf is not a force
   2. emf is the work done per unit charge by the source
   3. emf is measured in newtons

2. False statement

   Resistivity depends on the length of the sample

   Statements

   1. Resistivity depends on the length of the sample
   2. Resistivity is a property of the material
   3. Resistance depends on length and cross-section

3. False statement

   The loop rule conserves current

   Statements

   1. The junction rule conserves charge
   2. The loop rule conserves current
   3. The loop rule sums potential changes to zero

Explanation