269259
When a current of \((2.5 \pm 0.5)\) ampere flows through a wire, it develops a potential difference of ( \(20 \pm 1\) ) volt, the resistance of the wire is
269260
Two objects \(A\) and \(B\) are of lengths \(5 \mathrm{~cm}\) and \(7 \mathrm{~cm}\) determined with errors \(0.1 \mathrm{~cm}\) and 0.2 cm respectively. Theerror in determining (a) thetotal length and (b) thedifferencein their lengths are
1 \((12 \pm 0.3),(2 \pm 0.3)\)
2 \((7 \pm 0.3),(2 \pm 0.3)\)
3 \((12 \pm 0.3),(12 \pm 0.3)\)
4 \((12 \pm 0.3),(2 \pm 0.6)\)
Explanation:
\(x=(a+b)\) and \(\Delta x=\Delta a+\Delta b\)
\(x=(a-b)\) and \(\Delta x=\Delta a+\Delta b\)
Units and Measurements
269261
In a simple pendulum experiment, length is measured as \(31.4 \mathrm{~cm}\) with an accuracy of \(1 \mathrm{~mm}\). The time for 100 oscillations of pendulum is \(112 \mathrm{~s}\) with an accuracy of \(0.01 \mathrm{~s}\).
The percentage accuracy in \(g\) is
269259
When a current of \((2.5 \pm 0.5)\) ampere flows through a wire, it develops a potential difference of ( \(20 \pm 1\) ) volt, the resistance of the wire is
269260
Two objects \(A\) and \(B\) are of lengths \(5 \mathrm{~cm}\) and \(7 \mathrm{~cm}\) determined with errors \(0.1 \mathrm{~cm}\) and 0.2 cm respectively. Theerror in determining (a) thetotal length and (b) thedifferencein their lengths are
1 \((12 \pm 0.3),(2 \pm 0.3)\)
2 \((7 \pm 0.3),(2 \pm 0.3)\)
3 \((12 \pm 0.3),(12 \pm 0.3)\)
4 \((12 \pm 0.3),(2 \pm 0.6)\)
Explanation:
\(x=(a+b)\) and \(\Delta x=\Delta a+\Delta b\)
\(x=(a-b)\) and \(\Delta x=\Delta a+\Delta b\)
Units and Measurements
269261
In a simple pendulum experiment, length is measured as \(31.4 \mathrm{~cm}\) with an accuracy of \(1 \mathrm{~mm}\). The time for 100 oscillations of pendulum is \(112 \mathrm{~s}\) with an accuracy of \(0.01 \mathrm{~s}\).
The percentage accuracy in \(g\) is
269259
When a current of \((2.5 \pm 0.5)\) ampere flows through a wire, it develops a potential difference of ( \(20 \pm 1\) ) volt, the resistance of the wire is
269260
Two objects \(A\) and \(B\) are of lengths \(5 \mathrm{~cm}\) and \(7 \mathrm{~cm}\) determined with errors \(0.1 \mathrm{~cm}\) and 0.2 cm respectively. Theerror in determining (a) thetotal length and (b) thedifferencein their lengths are
1 \((12 \pm 0.3),(2 \pm 0.3)\)
2 \((7 \pm 0.3),(2 \pm 0.3)\)
3 \((12 \pm 0.3),(12 \pm 0.3)\)
4 \((12 \pm 0.3),(2 \pm 0.6)\)
Explanation:
\(x=(a+b)\) and \(\Delta x=\Delta a+\Delta b\)
\(x=(a-b)\) and \(\Delta x=\Delta a+\Delta b\)
Units and Measurements
269261
In a simple pendulum experiment, length is measured as \(31.4 \mathrm{~cm}\) with an accuracy of \(1 \mathrm{~mm}\). The time for 100 oscillations of pendulum is \(112 \mathrm{~s}\) with an accuracy of \(0.01 \mathrm{~s}\).
The percentage accuracy in \(g\) is