Question
A magnet, when moved near a coil, produces an induced
current. Which of the following method(s) can be used to increase the magnitude of the induced current? (i) Increasing the number of turns in the coil (ii) Increasing the speed of the magnet (iii) Increasing the resistivity of the wire of the coilSolution
The correct answer is D
The LCM of two numbers is 12 times their HCF. The sum of LCM and HCF is 403 and if both the number are smaller than their LCM. Find both the numbers?
The greatest number of four digits which when divided by 5, 7, 9 leave remainders 3, 5, 7 respectively is:
The ratio of two numbers is 5:10 and their LCM is 100. The numbers are:
The greatest number of four digits which when divided by 10, 12, 14 leave remainders 5, 7, 9 respectively is:
What is the unit digit of the number 'Z' obtained by subtracting the largest two-digit prime number from the least common multiple (LCM) of all single-d...
Two positive integers multiply to 5070, with their highest common factor being 13 and their sum amounting to 143. What is the difference between these t...
Let N be the greatest number that will divide 86, 112, 138 leaving the same remainder in each case. Then sum of the digits in N is:
The LCM of two numbers is 960 while their product is 7680. Find the greatest common divisor of the two numbers.
Find the HCF of 240, 280 and 560.
- The sum of the HCF and LCM of two numbers is 340, and the LCM is 16 times the HCF. If one of the numbers is 40, find the other number.
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