MDCAT Physics MCQ #495

MDCAT Physics MCQ #495

1. Question 1

   Q1. Why are the terminals of a battery marked positive and negative?

   • A) To indicate the direction of current flow
   • B) To show the magnitude of voltage
   • C) To distinguish between AC and DC
   • D) To indicate the polarity of the voltage source

   Answer: To indicate the polarity of the voltage source

   Explanation: The markings indicate the polarity of the voltage source. Option A is incorrect as current direction isn't directly indicated by these markings.