Home
Class 11
PHYSICS
The resistance R=V/I where V=(100 pm5)V ...

The resistance R=V/I where V=`(100 pm5)V` and I=`(10 pm 0.2)A`. Find the percentage error in R.

Text Solution

Verified by Experts

`R=(V)/(I)`
`:.` Percentage error in R,
`=(DeltaR)/(R)xx100=((DeltaV)/(V)+(DeltaI)/(I))xx 100`
`:.(DeltaR)/(R)xx100=((5)/(100)+(0.2)/(10))xx100`
`=(0.05+0.02)xx100`
`=0.07xx100=7%`
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENT

    KUMAR PRAKASHAN|Exercise SECTION -B (NUMERICALS) (NUMERICAL FROM TEXTUAL EXERCISE)|32 Videos
  • UNITS AND MEASUREMENT

    KUMAR PRAKASHAN|Exercise SECTION -B (NUMERICALS) (ADDITIONAL EXERCISE)|22 Videos
  • UNITS AND MEASUREMENT

    KUMAR PRAKASHAN|Exercise SECTION -B (NUMERICALS) (NUMERICAL ROM TEXTUAL ILLUSTRATION)|1 Videos
  • THERMODYANMICS

    KUMAR PRAKASHAN|Exercise Question Paper|11 Videos
  • WAVES

    KUMAR PRAKASHAN|Exercise SECTION-F (Questions From Module) (Sample questions for preparation of competitive exams)|23 Videos

Similar Questions

Explore conceptually related problems

The resistance R= (V)/(I) , where V= (100+-5.0) V and I=(10+-0.2)A . Find the percentage error in R .

The resistance R = V//i , where V = 100 +- 5 V and I = 10+- 0.2 A . What is the total error in R ?

The resistance R of a wire is given by the relation R= (rhol)/( pir^(2)) . Percentage error in the measurement of rho, l and r is 1 % , 2% and 3% respectively. Then the percentage error in the measurement of R is

To measure gravitational acceleration by using simple pendulum, length of pendulum (0.8pm0.01) m and periodic time (2.5pm0.12) s. Find percentage error in measurement of g.

Ab object covers (16.0 pm 0.4) m distance in (4.0 pm 0.2) s. Find out the second.

In Ohm's law potential difference between two end of a resistor are 15V, 14V, 10V, 12V and 13V. Find average absolute error, fractional (relative) error and pecentage error.

In an experiment with potentiometer, V_(B) =10V ,R us adjusted to be 50Omega . A student wanting to measure voltage E_(1) of a battery (approx.8V) finds no null point possible. He then diminshes R to 10Omega and is able to locate the null point on the last (4^(th)) segment of the potentiometer. The resistance of the potentiometer wire (R) will be a lt R lt b. Find the value of ((b)/(a)) .

In the circuit shown the cells A and B have negligible resistance. For V_(A) = 12 V, R_(1) = 500 Omega and R = 100 Omega , the galvanometer (G) shows no deflection. The value of V_(B) is

A and B are two electric bulbs with their ratings respectively 40 W, 110 V and 100 W and 110 V. Find their respective filament resistances. If the bulbs are connected in series with a supply of 220 V, which bulb will fuse ?

Two rods have lengths measured as (1.8 pm 0.2) m and (2.3 pm 0.1) m. Calculate their combined length with error limits.

KUMAR PRAKASHAN-UNITS AND MEASUREMENT-SECTION -B (NUMERICALS) (NUMERICAL FROM TEXTUAL ILLUSTRATION)
  1. A man wishes to estimate the distance of a nearby tower from him. He s...

    Text Solution

    |

  2. The moon is observed from two diametrically opposite points A and B o...

    Text Solution

    |

  3. The Sun's angular diameter is measured to be 1920". The distance D of ...

    Text Solution

    |

  4. If the size of a nucleus (in the range of 10^(-15) to 10^(-14)) is sc...

    Text Solution

    |

  5. Two clocks are being tested against a standard clock located in a nati...

    Text Solution

    |

  6. We measure the period of oscillation of a simple pendulum. In successi...

    Text Solution

    |

  7. The temperature of two bodies measured by a thermometer are t(1) = 20^...

    Text Solution

    |

  8. The resistance R=V/I where V=(100 pm5)V and I=(10 pm 0.2)A. Find the p...

    Text Solution

    |

  9. Two resistors of resistances R(1)=100pm3 ohm and R(2)=200pm4 ohm are c...

    Text Solution

    |

  10. Find the relative error in Z, if Z = A^(4)B^(1/3)/CD^(3/2).

    Text Solution

    |

  11. The period of oscillation of a simple pendulum is T =2pisqrt(L/g). Mea...

    Text Solution

    |

  12. Each side of a cube is measured to be 7.203m. What are the total surfa...

    Text Solution

    |

  13. 5.74 g of a substance occupies 1.2cm^(3). Express its density by keepi...

    Text Solution

    |

  14. Let us consider an equation (1)/(2)mv^(2)=mgh Where m is the mass of...

    Text Solution

    |

  15. The SI unit of energy is J=kg m^(2)s^(-2), that of speed v is ms^(-1) ...

    Text Solution

    |

  16. Consider a simple pendulum, having a bob attached to a string, that os...

    Text Solution

    |