Physics

NUMERICALS ON KIRCHHOFF'S LAW: Calculate the current through the galvanometer when a potential difference of 10 V is maintained across AC as shown in the image. SOLUTION: KIRCHHOFF'S SECOND LAW: Kirchhoff's subsequent(second) law is otherwise called Voltage law (OR) Loop law.This law depends on LAW OF CONSERVATION OF ENERGY.Kirchhoff's subsequent law expresses that " THE ALGEBRAIC SUM OF ALL THE POTENTIAL DIFFERENCES ALONG A CLOSED LOOP IS ZERO". CONVENTIONS: Accept any course (direction) as the heading of traversal (direction of traversal). (Either clockwise or anticlockwise) EMF of the cell is POSITIVE in the event that the bearing of the crossing (direction of the traversal) is from its NEGATIVE terminal to POSITIVE terminal. (NPP) EMF of the cell is NEGATIVE assuming the heading of the crossing (direction of the traversal) is from its POSITIVE terminal to NEGATIVE terminal of the battery. (PNN) The IR item is taken as POSITIVE on the off chance that the

TORQUE: Torque is a winding power (twisting force) follows up on an article that produces revolution of an item and is given by the cross result ( product ) of position vector and the force vector. DIFFERENCES BETWEEN HORSEPOWER AND TORQUE: HORSE POWER: Power is the numerical item. Power is determined from torque and RPM Pull (Horsepowe r) is the proportion of motor's general performance across all conditions. Pull  (Horsepower) resembles the volume of a sound system. Pull  (Horsepower ) and force (torque) are set by the designers renting execution against superb eco-friendliness. Pull  (Horsepower) and torque  are identified with each other. TORQUE : Torque  is estimation of contorting power and is a part of pull. The measure of force (torque) that motor can apply relies upon motor's RPM . Torque  is the estimation of the most extreme winding power when it is going about its hardest responsibilities. Torque resembles the bass attributes in a sound system. Torque le

  KIRCHHOFF'S SECOND LAW: Kirchhoff's second law is also known as VOLTAGE LAW (OR) LOOP LAW.This law is based on LAW OF CONSERVATION OF ENERGY.Kirchhoff's second law states that  " THE ALGEBRAIC SUM OF ALL THE POTENTIAL DIFFERENCES ALONG A CLOSED LOOP IS ZERO". CONVENTIONS: Take any direction as the direction of traversal.(Either clockwise or anticlockise) EMF of the cell is POSITIVE if the direction of the traversal is from its NEGATIVE terminal to POSITIVE terminal. (NPP) EMF of the cell is NEGATIVE if the direction of the traversal is from its POSITIVE terminal to NEGATIVE terminal. (PNN) The IR product is taken as POSITIVE if the resistor is traversed in the same direction as the assumed current. Find the current in each wire using Kirchhoff’s voltage law (the second law) SOLUTION: MODIFIED CIRCUIT           The modified circuit is shown above. All elements are connected in series.Here we can select the direction of  traversal as anti-clockwise. In a seri