40
95. The weights (in kg) of 30 students of a class are: 39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46, 36, 35, 34, 39, 43, 32, 37, 29, 26. Prepare a frequency distribution table using one class interval as (30 – 35), 35 not included.
12
Jul
95. The weights (in kg) of 30 students of a class are: 39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46, 36, 35, 34, 39, 43, 32, 37, 29, 26. Prepare a frequency distribution table using one class interval as (30 – 35), [...]
Example 2 : The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21, 17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.
09
Jul
Example 2 : The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21, 17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25. -12 10 –15 etc. Find [...]
In a diagnostic test in mathematics given to students, the following marks (out of 100) are recorded: 46,52,48,11,41,62,54,53,96,40,98,44 Which average will be a good representative of the above data?
03
Jul
In a diagnostic test in mathematics given to students, the following marks (out of 100) are recorded: 46,52,48,11,41,62,54,53,96,40,98,44 Which average will be a good representative of the above data? 11 40 41 44 Which average will be a good representative of the above data? 48 5^2 53 54 62 96 98 In a diagnostic test [...]
6. Give one example of a situation in which (i) the mean is an appropriate measure of central tendency. (ii) the mean is not an appropriate measure of central tendency but the median is an appropriate measure of central tendency.
17
Oct
6. Give one example of a situation in which (i) the mean is an appropriate measure of central tendency. (ii) the mean is not an appropriate measure of central tendency but the median is an appropriate measure of central tendency. 2. In a mathematics test given to 15 students 39 40 42 46 48 5^2 [...]
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2. In a mathematics test given to 15 students ,
39 ,
40 ,
42 ,
46 ,
48 ,
5^2 ,
54 ,
60 Find the mean ,
62 ,
96 ,
98 ,
median and mode of this data. ,
the following marks (out of 100) are recorded: 41 ,
2. In a mathematics test given to 15 students, the following marks (out of 100) are recorded: 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60 Find the mean, median and mode of this data.
17
Oct
2. In a mathematics test given to 15 students, the following marks (out of 100) are recorded: 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60 Find the mean, median and mode of this data. 2. In a mathematics test given to 15 students 39 40 42 46 48 [...]
Tags:
2. In a mathematics test given to 15 students ,
39 ,
40 ,
42 ,
46 ,
48 ,
5^2 ,
54 ,
60 Find the mean ,
62 ,
96 ,
98 ,
median and mode of this data. ,
the following marks (out of 100) are recorded: 41 ,
The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 (i) Find the mode and median of this data. (ii) Is there more than one mode?
07
Oct
The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 (i) Find the mode and median of this data. (ii) Is there more than one mode? -45 3^2 35° 36 37 38 40 42 43 47 (i) Find the [...]
A cricketer scores the following runs in eight innings:58, 76, 40, 35, 46, 45, 0, 100.Find the mean score.
07
Oct
A cricketer scores the following runs in eight innings:58, 76, 40, 35, 46, 45, 0, 100.Find the mean score. -45 100.Find the mean score. 35° 40 46 76 A cricketer scores the following runs in eight innings:58 October 7, 2020 Category: Chapter 3 - Data Handling , Maths , NCERT Class 7 ,
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-45 ,
100.Find the mean score. ,
35° ,
40 ,
46 ,
76 ,
A cricketer scores the following runs in eight innings:58 ,
In Figure (a), two concentric coils, lying in the same plane, carry currents in opposite direction. The current in the larger coil 1 is fixed. Current i2 in coil 2 can be varied. Figure (b) gives the net magnetic moment of the two-coil system as a function of i2. The vertical axis scale is set by μ≠t,s=2.0×10−5A.m2, and the horizontal axis scale is set by i2s=10.0mA. If the current in coil 2 is then reversed, what is the magnitude of the net magnetic moment of the two-coil system when i2 = 7.0 m A?
04
Sep
In Figure (a), two concentric coils, lying in the same plane, carry currents in opposite direction. The current in the larger coil 1 is fixed. Current i2 in coil 2 can be varied. Figure (b) gives the net magnetic moment of the two-coil system as a function of i2. The vertical axis scale is set [...]
Tags:
40 ,
A current loop ,
at angle θ=30∘ to the direction of a uniform magnetic field of magnitude 0.50 T. In unit-vector notation ,
carrying a current of 5.0 A ,
Figure shows a rectangular 20-trun coil of wire of dimensions 10 cm by 5.0 cm. It carries a current of 0.10 A and is hinged along one long side. It is mounted in the xy. Plane ,
has 3.00 turns and an area of 4.00×10−3m2 ,
In Figure (a) ,
is in the shape of a right triangle with sides 30 ,
lying in the same plane ,
The coil in figure carries current i=2.00 A in the direction indicated is parallel to an xz plane ,
two concentric coils ,
what is the torque acting on the coil about the hinge line? ,
The coil in figure carries current i=2.00 A in the direction indicated is parallel to an xz plane, has 3.00 turns and an area of 4.00×10−3m2, and lies in a uniform magnetic field B−=(2.00iˆ−3.00jˆ−4.00kˆ)mT. What are (a) the orientation energy of the coil in the magnetic field and (b) the torque (in unit-vector notation) on the coil due to the magnetic field?
04
Sep
The coil in figure carries current i=2.00 A in the direction indicated is parallel to an xz plane, has 3.00 turns and an area of 4.00×10−3m2, and lies in a uniform magnetic field B−=(2.00iˆ−3.00jˆ−4.00kˆ)mT. What are (a) the orientation energy of the coil in the magnetic field and (b) the torque (in unit-vector notation) on [...]
Tags:
40 ,
A current loop ,
at angle θ=30∘ to the direction of a uniform magnetic field of magnitude 0.50 T. In unit-vector notation ,
carrying a current of 5.0 A ,
Figure shows a rectangular 20-trun coil of wire of dimensions 10 cm by 5.0 cm. It carries a current of 0.10 A and is hinged along one long side. It is mounted in the xy. Plane ,
has 3.00 turns and an area of 4.00×10−3m2 ,
is in the shape of a right triangle with sides 30 ,
The coil in figure carries current i=2.00 A in the direction indicated is parallel to an xz plane ,
what is the torque acting on the coil about the hinge line? ,
A current loop, carrying a current of 5.0 A, is in the shape of a right triangle with sides 30,40, and 50 cm. The loop is in a uniform magnetic field of magnitude 80 mT whose direction is parallel to the current in the 50 cm side of the loop. Find the magnitude of (a) the magnetic dipole moment of the loop and (b) the torque on the loop.
04
Sep
A current loop, carrying a current of 5.0 A, is in the shape of a right triangle with sides 30,40, and 50 cm. The loop is in a uniform magnetic field of magnitude 80 mT whose direction is parallel to the current in the 50 cm side of the loop. Find the magnitude of (a) [...]
Tags:
40 ,
A current loop ,
at angle θ=30∘ to the direction of a uniform magnetic field of magnitude 0.50 T. In unit-vector notation ,
carrying a current of 5.0 A ,
Figure shows a rectangular 20-trun coil of wire of dimensions 10 cm by 5.0 cm. It carries a current of 0.10 A and is hinged along one long side. It is mounted in the xy. Plane ,
is in the shape of a right triangle with sides 30 ,
what is the torque acting on the coil about the hinge line? ,