When resistors are connected in parallel, we can be certain that :

When resistors are connected in parallel, we can be certain that
 
  A) the same current flows in each one.
  B) the potential difference across each is the same.
  C) the power dissipated in each is the same.
  D) their equivalent resistance is greater than the resistance of any one of the individual resistances.

Question 2

A constant pressure gas thermometer is initially at 28.C. If the volume of gas increases by 10, what is the final Celsius temperature?
 
  What will be an ideal response?

Question 3

A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mass 100.g. The collision is elastic. What is the speed of each ball immediately after the collision?
 
  What will be an ideal response?

Question 4

Two pure tones are sounded together and a particular beat frequency is heard. What happens to the beat frequency if the frequency of one of the tones is increased?
 
  A) It does not change.
  B) It decreases.
  C) It could either increase or decrease.
  D) It increases.