The fact that current carrying loops experience a net torque in a magnetic field is the principle behind the electric motor, where the electrical energy involved in establishing a current is converted into the mechanical energy of rotating a shaft.
From 1776 until the present day, July 4th has been celebrated as the birth of American independence, with typical festivities ranging from fireworks, parades and concerts to more casual family gatherings and barbecues. Play video Declaration of Independence. Play video History of the Fourth of July.
Select another year-range: India celebrates Independence Day on August 15 each year. India became an independent nation on August 15, 1947, so a gazetted holiday is held annually to remember this date. India's Independence Day is celebrated nationwide on August 15.India's Independence Day is celebrated nationwide on August 15.he Constituent Assembly, to who power was to be transferred, met to celebrate India's independence at 11pm on August 14, 1947. India gained its liberty and became a free country at midnight between August 14 and August 15, 1947.