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A rectifier is a device that converts alternating electric current into direct current. It may be an electron tube (either a vacuum or a gaseous type), vibrator, solid-state device, or mechanical device. Hence option B is correct. A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage. An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. A Condenser is a device for reducing a gas or vapour to a liquid. Condensers are employed in power plants to condense exhaust steam from turbines and in refrigeration plants to condense refrigerant vapours, such as ammonia and fluorinated hydrocarbons.
A and B entered into a partnership and invested their respective amounts in ratio of 2: 1. C and D entered into another partnership with initial investm...
If a sum of money is to be divided among A, B, C such that A’s share is equal to thrice B’s share and B’s share is 7 times C’s share then their ...
A and B started a business with investments in the ratio 4:5 respectively. Find the share of A, if they earned a profit of Rs. 2700.
'Aman,' 'Bheema,' and 'Ritika' initiated a business by investing Rs. 400, Rs. 500, and Rs. 900, respectively. After __ months fro...
'Ashish' started a business by investing Rs.15,000. 'm' months later, 'Arjun' joined him by investing Rs. 10,000. 4 months after joining the business, '...
"Rittu and Mittu started a cosmetic business with Rittu investing Rs. 30,000 and Mittu investing a certain amount of money. They hired a receptionist as...
The savings of Arun and Bhaskar are same. The difference between the expenditure of Bhaskar and the savings of both Arun and Bhaskar together is 0. The ...
If the ratio of time periods of investment of A and B is 5:6, profit at the end of the year is Rs.100000 and A’s share in it is Rs.25000, then what is...
‘D’, ‘E’, and ‘F’ started a business with initial investments of Rs. ‘3x + 720’, Rs. ‘4x + 500’, and Rs. ‘2x + 300’ respectively...
Ajay and Vijay started a business with investments of Rs. 25,000 and Rs. 15,000, respectively. After 9 months, Sanjay joined them with an investment equ...
