Answer:
Explanation:
The law of effect given by Edward Thorndike explains the behavior of child given in the problem . The effect which gives pleasure and satisfying effect are likely to be learnt easily and the effect which creates bad taste are likely to be forgotten easily . actions producing feel good effect are likely to be repeated in future .
Answer:
Option a)
Explanation:
In the process of charging anything by the method of induction, a charged body is brought near to the body which is neutral or uncharged without any physical contact and the ground must be provided to the uncharged body.
The charge is induced and the nature of the induced charge is opposite to that of the charge present on the charged body.
So when a positively charged rod is used to charge an electroscope, the rod which is positive attracts the negative charge in the electroscope and the grounding of the electroscope ensures the removal of the positive charge and renders the electroscope negatively charged.
Answer:
there move slower
Explanation:
because when heated the molecules of the matter[liquid]move faster but when cooled,they move slow or they do not.
The answer is F=3.906 x 10^-9
Answer:
The induced emf in the coil is 170 volt and its direction is clockwise direction.
Explanation:
Given that,
Number of turns of a coil, N = 50
Initial area, 
Final area, 
Time, t = 0.1 s
The magnetic field points into the page and has a strength of 1.36 T.
We need to find the magnitude and direction of the average value of the induced emf. Due to change in area of the coil and emf will be induced in it. The induced emf is given by :
So, the induced emf in the coil is 170 volt and its direction is clockwise direction. Hence, this is the required solution.
