Answer:
Oc.
Explanation:
Velocity is a vector which also tells us direction, speed doesn’t.
Speed doesn’t represent the potential of an object.
Answer:
N₂/N₁ = 45
Explanation:
The relation of the number of turns with the voltage is given by the EMF equation of transformer:
(1)
<em>where V₁: voltage of the primary winding, V₂: voltage of the secondary winding, N₁: number of turns in the primary winding, and N₂: number of turns in the secondary winding </em>
Assuming that the primary winding is connected to the input voltage supply, and using equation (1), we can calculate the ratio of N₂ to N₁:
So, the ratio N₂/N₁ is 45.
Have a nice day!
Answer:
A positive charge experiences a force in the direction of an electric field.
Explanation:
Electric field is defined as the electric force acting per unit positive charge. Mathematically, it is given by :
We know that like charges repel each other while unlike charges attract each other. The direction of electric field is in the direction of electric force. For a positive charge the field lines are outwards and for a negative charge the electric field lines are inwards.
So, the correct option is (b) "A positive charge experiences a force in the direction of an electric field".
According to law of conservation of mass within a reaction,
The mass of the compound formed is (23+35.5) grams means 58.5 grams of sodium chloride[NaCl] will be formed.