Description : A particle of charge `q` and velocity v passes undeflected through a space with non-zero electric field E and magnetic field B. The undeflecting condi
Last Answer : A particle of charge `q` and velocity v passes undeflected through a space with non-zero electric field ... D. Both B and E are doubled in magnitude
Description : DNA finger printing is based on the presence in DNA of (A) Constant number of tandem repeats (B) Varibale number of tandem repeats (C) Non-repititive sequences in each DNA (D) Introns in eukaryotic DNA
Last Answer : Answer : B
Description : The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as A) Magnetic core memory B) Magnetic tape memory C) Magnetic disk memory D) Magnetic bubble memory
Last Answer : Answer : D
Description : The magnetic storage chips used to provide non-volatile direct access storage of data and that have no moving parts are known as________ A. Magnetic core memory B. Magnetic tape memory C. Magnetic disk memory D. Magnetic bubble memory
Last Answer : D. Magnetic bubble memory
Description : The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as a. Magnetic core memory b. Magnetic tape memory c. Magnetic disk memory d. Magnetic bubble memory
Last Answer : a. Magnetic core memory
Last Answer : d. Magnetic bubble memory
Description : How much does Best Buy charge to upgrade the memory on your computer for you?
Last Answer : As of 9-17-09, Best buy charges 49.99 for memory or any hardware install if it you bring it in. If you decide not to, it will cost you 149 smackers.
Description : Which instrument detects the presence of an electric charge?
Last Answer : Answer: Electroscope
Description : At resting stage charge of inner surface is due to presence of
Last Answer : At resting stage charge of inner surface is due to presence of
Description : How can a body be tested for the presence of a charge?
Last Answer : A body can be tested for a charge in the laboratory with the help of an instrument called a gold leaf Electroscope.
Description : The ALU of a computer normally contains a number of high speed storage element called A) Semiconductor memory B) Registers C) Hard disks D) Magnetic disk
Description : of the primary memory of the computer is limited. a. Storage capacity b. Magnetic disk c. Both d. None of these
Last Answer : a. Storage capacity
Description : The ALU of a computer normally contains a number of high speed storage element called a. Semiconductor memory b. Registers c. Hard disks d. Magnetic disk
Last Answer : b. Registers
Description : Which of the following is used as a primary memory of computer ? (1) Optical storge device (2) Magnetic storage device (3) RAM (4) Magneto-Optical storage device
Last Answer : RAM
Description : A charged particle experience magnetic force in the presence of magnetic field. Which of the following statement is correct?
Last Answer : A charged particle experience magnetic force in the presence of magnetic field. Which of the ... and magnetic field is parallel to the velocity
Description : The purpose of an impressed current cathodic protection system aboard ship is to _______________. A. prevent corrosion of the hull, propeller, rudder and line shafting B. neutralize the vessel's ... the presence of salt air D. maintain a minimum constant alternator load to prevent overheating
Last Answer : Answer: A
Description : The presence of ‐‐‐‐‐‐‐‐‐‐‐ make the smart card smart. a. Memory b. Microchip c. E‐cash d. None of the above
Last Answer : b. Microchip
Description : Why Will My iPod touch Only Charge On My Computer?
Last Answer : Reset (go on itunes, it’s easy).
Description : Can I charge a 4GB Nano without plugging into the computer?
Last Answer : You can get a charger that plugs directly into the wall. Older versions of IPOD came with a wall attachment.
Description : my computer seems unable to take a charge (i.e. the current from the adaptor is not getting to my computer). what are my options in terms of fixing the problem?
Last Answer : I believe there is a problem with laptop's internal power input source. Changing the power unit is expensive. if you have a pc, geek squad has some good deals on computer repairs. However the best option would be too go directly to your computer manufacturer's repaor service
Description : A moving particle of charge q and mass m enters a uniform magnetic field perpendicular to the direction of field. Then
Last Answer : A moving particle of charge q and mass m enters a uniform magnetic field perpendicular to the ... circular path (D) its velocity vector changes
Description : Electrons move at right angles to a magnetic field of `1.5xx10^(-2)` Tesla with a speed of `6xx10^(7)m//s`. If the specific charge of the electron is
Last Answer : Electrons move at right angles to a magnetic field of `1.5xx10^(-2)` Tesla with a speed of `6xx10^ ... C//kg`. The radius of the circular path will be
Description : A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a magnetic field `B`. The time takeen
Last Answer : A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a ... (2pi qB)/(m)` D. `(2pi m)/(qB)`
Description : A charged particle (charge `q`) is moving in a circle of radius `R` with unifrom speed `v`. The associated magnetic moment `mu` is given by
Last Answer : A charged particle (charge `q`) is moving in a circle of radius `R` with unifrom speed `v`. The associated magnetic ... . `1/2 aqR` D. `1/2 q^(2)vR`
Description : A proton of mass m and charge q is moving in a plane with kinetic energy E. if there exists a uniform magnetic field B, perpendicular to the plane mot
Last Answer : A proton of mass m and charge q is moving in a plane with kinetic energy E. if there exists a uniform magnetic ... Em))/(2qB)` D. `(sqrt(2Eq))/(qB)`
Description : A proton beam enters magnetic field of `10^(-4) "Wb//m^(2)` normally. If the specific charge of the proton is `10^(11) C//kg` and its velocity is `10^
Last Answer : A proton beam enters magnetic field of `10^(-4) "Wb//m^(2)` normally. If the specific charge of the proton is `10^ ... . 100 m B. 0.1 m C. 1 m D. 10 m
Description : There is a ring of radius r having linear charge density `lambda` and rotating with a uniform angular velocity `omega.` the magnetic field produced by
Last Answer : There is a ring of radius r having linear charge density `lambda` and rotating with a uniform angular velocity ` ... D. `(mu_(0)lambda)/(2omega^(2))`
Description : A particle of charge -q and mass m enters a uniform magnetic field `vecB` (perpendicular to paper inward) at P with a velocity `v_0` at an angle `alph
Last Answer : A particle of charge -q and mass m enters a uniform magnetic field `vecB` (perpendicular to paper inward) at P ... for time `t = (2m(pi-alpha))/(Bq)`
Description : Assertion A charged particle is rotating in a circle. Then magnetic field (B) at centre of circle and magnetic moment (M) produced by motion of charge
Last Answer : Assertion A charged particle is rotating in a circle. Then magnetic field (B) at centre of circle and ... M and B are always parallel to each other.
Description : A particle of charge `q` and mass `m` moves in a circular orbit of radius `r` with angular speed `omega`. The ratio of the magnitude of its magnetic m
Last Answer : A particle of charge `q` and mass `m` moves in a circular orbit of radius `r` with angular speed `omega`. The ... C. `q` and `m` D. `omega` and `m`
Description : A particle of mass m and having a positive charge q is projected from origin with speed `v_(0)` along the positive X-axis in a magnetic field B = `-B_
Last Answer : A particle of mass m and having a positive charge q is projected from origin with speed `v_(0)` along the positive ... /(qB)` D. `(2mv_(0))/(qB_(0))`
Description : A charged particle of mass m and charge q describes circular motion of radius r in a unifrom magnetic fiels of strenght b the frequency of revolution
Last Answer : A charged particle of mass m and charge q describes circular motion of radius r in a unifrom magnetic fiels of ... (2pim)/(Bq)` D. `(Bq)/(2piq)`
Description : A charge particle travels along a straight line with a speed v in region where both electric field E and magnetic field b are present.It follows that
Last Answer : A charge particle travels along a straight line with a speed v in region where both electric field E ... |=v|E|` and the two fields are perpendicular
Description : Moving electric charge produces - (1) magnetic field (2) sound waves (3) light rays (4) heat waves
Last Answer : (1) magnetic field Explanation: An electric charge always produces an electric field, regardless of speed, and a moving charge generates a magnetic field. An electric current passing through a conductor produces a magnetic field because it has many charges in motion.
Description : The waves associated with electric and magnetic fields, resulting from the acceleration of an electric charge are called
Last Answer : electromagnetic waves.
Description : Where an electric charge experiences a force, there is an A. electric field B. magnetic field C. electric current D. conventional current
Last Answer : electric field
Description : Phenomena in which a charged body attract uncharged body is called A. electrostatic induction B. electric current C. charge movement D. magnetic induction
Last Answer : electrostatic induction
Description : Force on a moving charge in a uniform magnetic field depends uponA. magnetic flux density B. the charge on the particle C. the speed of particle D. all of above
Last Answer : all of above
Description : A nerve impulse is essentially a wave of A A. Electrical charge B. Mechanical Charge C. Magnetic charge D. All of the these
Last Answer : Electrical charg
Description : Find the Lorentz force of a charge 2.5C having an electric field of 5 units and magnetic field of 7.25 units with a velocity 1.5m/s. a) 39.68 b) 68.39 c) 86.93 d) 93.68
Last Answer : a) 39.68
Description : Find the magnetic force when a charge 3.5C with flux density of 4 units is having a velocity of 2m/s. a) 14 b) 28 c) 7 d) 32
Last Answer : b) 28
Description : The magnetic field intensity of an infinite sheet of charge with charge density 36.5 units in air will be a) 18.25 b) 11.25 c) 73 d) 1/36.5
Last Answer : a) 18.25
Description : Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is below the sheet. a) 6 b) 0 c) -6 d) 60k
Last Answer : c) -6
Description : Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is above the sheet. a) -6 b) 12k c) 60 d) 6
Last Answer : d) 6
Description : Which one of the following statement is incorrect regarding the electromagnetic radiation? (A) These are produced by the motion of electric charge (B) The oscillation of charged particles sets up ... electric fields induce the changing magnetic fields in the surrounding medium (D) None of these
Last Answer : Answer: Option D
Description : A proton having mass m and charge q is projected into a region having a perpendicular magnetic field. The angle of deviation of proton when it comes out of the region with mv √2 qB ⁄ is a) π/3 b) π/4 c) π/6 d) 2 π/3
Last Answer : b) π/4
Description : The space around the charge within which other charges are influenced by it is called: (a) Electric field (b) Magnetic field (c) Electric flux (d) Electric intensity
Last Answer : a) Electric field
Description : Magnetic fields are produced by: w) resistance x) an electric potential difference y) electric current z) stationary charge
Last Answer : ANSWER: Y -- CURRENT