Mention the causes which give rise to errors during the measurement of physical quantities.

Let x={:[(a^(2)b^(2))/(c)]:} be the physical quantity. If the percentage error in the measurement of physical quantities a,b, and c is 2,3 and 4 per cent respectively, then percentage error in the measurement of x is

In an experiment, the percentage of error occurred in the in the measurement of physical quantities A,B,C and D are 1%, 2%,3% and 4% respectively. Then the maximum percentage of error in the measurement X, where X=(A^(2)B^(1//2))/(C^(1//3)D^(3)) , will be

Weber is the unit of which physical quantity?

The heat dissipated in a resistance can be obtained by the measurement of resistance, current and time. If the maximum percentage error in the measurement of these quantities are 1%,2% and 1% respectively. The maximum percentage error in the determination of the dissipated heat is -

Which of the following pairs represent of the same physical quantities?

Assertion : Absolute error may be negative or positive. Reason : Absolute error is the difference between the real value and the measured value of a physical quantity.

The heat produced in a long wire is characterised by resistance , current and time through which the current passes. If the errors in measuring these quantities are respectively 2%, 2% and 2% then total error in calculating the energy produced is

In the measurement of a physical quantity X = A^(2)B/C^(1//3)D^(3) The percentage errors introduced in the measurement of the quantities A, B, C and D are 2%, 2%, 4% and 5% respectively. Then, the minimum amount of percentage error in the measurement of X is contributed by

The percentage errors in quantities P, Q, R and S are 0.5%, 1%, 3% and 1.5% respectively in the measurement of a physical quantity A=(P^(3)Q^(2))/(sqrtRS) . The maximum percentage error in the value of A will be :

A physical quantity rho is calculated by using the formula rho =(1)/(10)(xy^(2))/(z^(1//3)) , where x, y and z are experimentally measured quantities. If the fractional error in the measurement of x, y and z are 2%, 1% and 3% , respectively, then the maximum fractional error in the calculation of rho is