Recent questions tagged ch-4

A horizontal overhead power line carries a current of $90A$ in east to west direction . What is the magnitude of the magnetic field due to the current $1.5 m$ below the line .

asked Jul 22, 2015 by meena.p

1 answer

A long straight wire in the horizontal plane carries a current of $50\;A$ in north to south direction .What is the direction of B at a point $2.5\;m$ east of the wire ?

asked Jul 22, 2015 by meena.p

1 answer

A long straight wire in the horizontal plane carries a current of $50\;A$ in north to south direction . give the magnitude of B at a point $2.5\;m$ east of the wire

asked Jul 22, 2015 by meena.p

1 answer

A long straight wire carries a current of $35\;A$ what is the direction of the magnetic field?

asked Jul 22, 2015 by meena.p

1 answer

A long straight wire carries a current of $35\;A$ what is the magnitude of the field B at a point $20\;cm$ away from the wire ?

asked Jul 22, 2015 by meena.p

1 answer

A circular coil of wire consisting of 100 times of radius $8.0\;cm$ carries a current of $0.40\;A$ What is the direction of the magnetic field B at the center of the coil ?

asked Jul 22, 2015 by meena.p

1 answer

A circular coil of wire consisting of 100 times of radius $8.0\;cm$ carries a current of $0.40\;A$ What is the magnitude of the magnetic field B at the center of the coil ?

asked Jul 22, 2015 by meena.p

1 answer

Determine the one's place in the $1146$

asked Apr 6, 2015 by meena.p

1 answer

Find the square root of $7744$ by prime factorization.

asked Apr 6, 2015 by meena.p

1 answer

Find the square root of $\large\frac{625}{1296}$

asked Apr 6, 2015 by meena.p

1 answer

Find the value of $100^2 -99^2$

asked Apr 6, 2015 by meena.p

1 answer

The square of an odd number is always _________

asked Apr 6, 2015 by meena.p

1 answer

Find the smallest number by which $1620$ should be divided so as to get a perfect square.

asked Apr 6, 2015 by meena.p

1 answer

Find the smallest whole number by which 1008 should be multiplied to get a perfect square number .

asked Apr 6, 2015 by meena.p

1 answer

Find the square root of $1764$

asked Apr 6, 2015 by meena.p

1 answer

Find the value of $\sqrt {15625}$ and use it to find the value of $\sqrt{156.25} +\sqrt {1.5625}$

asked Apr 6, 2015 by meena.p

1 answer

Find the cost of erecting a fence around a square field whose area is 9 hectares if fencing costs Rs.3.50 per metre.

asked Apr 6, 2015 by meena.p

1 answer

If $ \sqrt {1+\large\frac{25}{144}}=1+\large\frac{x}{12}$ the value of x is

asked Mar 27, 2015 by meena.p

1 answer

The value of $(676)^2-(675)^2$ is

asked Mar 27, 2015 by meena.p

1 answer

In a right triangle ABC $\angle B =90^{\circ}$ if $AB= 6 cm; BC= 8\;cm$ find $AC$

asked Mar 27, 2015 by meena.p

1 answer

Find the length of the side of a sqare whose area is $441\;m^2$

asked Mar 27, 2015 by meena.p

1 answer

Find the least number which must be subtracted from 402 so as to get a perfect square.

asked Mar 27, 2015 by meena.p

1 answer

Find the least number which must be subtracted from 402 so as to get a perfect square.

asked Mar 27, 2015 by meena.p

1 answer

The square root of $ 64009$ is

asked Mar 27, 2015 by meena.p

1 answer

How many two digit number satisfy this property. The last digit (unit's digit) of the square of the two - digit number is 8?

asked Mar 27, 2015 by meena.p

1 answer

$(\sqrt 3 - \large\frac{1}{\sqrt 3})^2 $ simplifies to

asked Mar 27, 2015 by meena.p

1 answer

Find the value of $\sqrt { 0.0619 \times ? }=1.3$

asked Mar 27, 2015 by meena.p

1 answer

$\large\frac{625}{11} \times \frac{14}{\sqrt {125}} \times \frac{11}{\sqrt{196}}$ is equal to

asked Mar 27, 2015 by meena.p

1 answer

If $ \sqrt 5 =2.236$ then the value of $\large\frac{\sqrt 5}{2}-\frac{10}{\sqrt 5}$$+\sqrt {125}$ is equal to

asked Mar 27, 2015 by meena.p

1 answer

The square root of $ (7+3 \sqrt 5) (7- 3\sqrt 5)$ is

asked Mar 27, 2015 by meena.p

1 answer

A group of students decided to collect as many paise from each members of group as is the number of members. If the total collection amount to $Rs. 59.29$ the number of the member is the group is

asked Mar 27, 2015 by meena.p

1 answer

If $ x= \large\frac{\sqrt 3 +1}{\sqrt 3 -1} $ and $y=\large\frac{ \sqrt 3 -1}{\sqrt 3 +1}$ then the value of $(x^2+y^2)$ is

asked Mar 27, 2015 by meena.p

1 answer

If $ a= 0.1039$ then the value of $\sqrt{4a^2-4a +1+3a }$ is

asked Mar 27, 2015 by meena.p

1 answer

If $3 \sqrt 5 + \sqrt {125}=17.88 $, then what will be the value of $ \sqrt{870} + 6 \sqrt {5}$ ?

asked Mar 27, 2015 by meena.p

1 answer

$\sqrt {1.5625}=$?

asked Mar 27, 2015 by meena.p

0 answers

$\sqrt {1.5625}=$?

asked Mar 27, 2015 by meena.p

1 answer

The least perfect square , which is divisible by each of $21,36$ and $66$ is

asked Mar 27, 2015 by meena.p

1 answer

What should come in place of both x in the equation $\large\frac{x}{\sqrt {128}}=\frac{\sqrt {162}}{x}$

asked Mar 27, 2015 by meena.p

1 answer

Find the side of a square whose area is equal to the area of rectangle of side $ 13.6 m \times 3.4 \;m$

asked Mar 27, 2015 by meena.p

1 answer

The length of the diagonal of a square plot is $325\;m$ Find the area of square plot.

asked Mar 27, 2015 by meena.p

1 answer

Find the number which when multiplied by itself gives $529.6329$

asked Mar 27, 2015 by meena.p

1 answer

In a school all children were made to stand in a square formation, out of $3050$ children , 25 were left after formation the square how many children are there in each row ?

asked Mar 26, 2015 by meena.p

1 answer

During Diwali, Daya shankar got a bonus of $Rs. 21025$ by his employer . He decided to give a part of his bonus to one of his aunt at his village. He decided that the amount will be the square root of $Rs. 21025$

asked Mar 26, 2015 by meena.p

1 answer

Find the side of a square whose area is equal to the area of rectangle of side $13.6 m \times 3.4 m$

asked Mar 26, 2015 by meena.p

1 answer

Evaluate : $ \sqrt {147 } \times \sqrt {243}$

asked Mar 26, 2015 by meena.p

1 answer

The area of a square field is $80 \large\frac{244}{729}$ square meters. Find the length of each side of the field.

asked Mar 26, 2015 by meena.p

1 answer

One side of a square is $5 \;cm$ . Find the length of its diagonal using the concept of Pythagoras theorem

asked Mar 26, 2015 by meena.p

1 answer

$19321$ plants are to be arranged in such a way that the number of plants in each row in the same as the number of plants in each column. How many plants are arranged in a column.

asked Mar 26, 2015 by meena.p

1 answer

The area of a square is $12544$ square metres. find the length of its side.

asked Mar 26, 2015 by meena.p

1 answer

Find the diagonal of a square whose each side is $ 9.8 \;cm$

asked Mar 26, 2015 by meena.p

1 answer

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